Time for a huge post.
I still feel that Rosalina and Palutena are among the strongest characters, simply because of their goddess-like powers.
Rosalina hasn't done anything to even be high on the tier list.
Ganondorf's immortality requires his Triforce piece to be shining, but once its light is extinguished, such as with the Master Sword, he's pretty much dead.
I've explained why those who defend Ganondorf's invulnerability to anything except the power to repel evil must provide evidence. Ganondorf may be a powerful character, but it's not because nothing cannot kill him except the power to repel evil.
On the other hand, Hades is able to kill Medusa, so it probably takes a god/goddess to kill a god/goddess.
Most likely.
If Palutena is so strong, why did she get possesed by Hades? And why does she make Pit do the fighting? Same with Rosalina and Mario on the last one.
She wasn't possessed by Hades, but if we assumed she was, she's dealing with another being on her level. Inferentially, Palutena is stronger than Pit, but she doesn't have any feats to demonstrate this. All we could really do is place her above Pit on the tier list. As for why she sends Pit, it's because Pit is the captain of her army. The question could be asked why Ganondorf sends his minions to do the job.
I would mentoin DK to, but he's likely in trouble because they both are able to fly (not that DK hasn't handled flying enemies before).
In the recent Donkey Kong Country games, DK does demonstrate some serious physical strength and durability. I'm not sure why there is an inconsistency between what's observed in cut-scenes and what's observed in-game. I can only assume the possibility is the game wouldn't be enjoyable or it'd be too easy. I could very well be wrong about both and there might be another reason.
But the Golden Gauntlets do not even make Link's sword attacks stronger in OoT. So unless Link is going to hurl those castle blocks at characters, it won't change how strong he is.
Well, as far as we observe in-game, but that might simply be a game mechanic, since with such strength, Link would easily be able to cut through boulders with enough force. Or our physics don't apply, which is a possibility, since this occurs in a universe not like our own. I did calculate that the obelisk Link lifts in OoT is 188 tons, which is a reasonable weight in terms of real-world obelisks.
Lifting something isn't the same as pushing something and vice versa. Prior to any gauntlets, Link was able to push those heavy blocks, which I calculated to be 73 tons, assuming it's marble, and 76 tons if it's granite. (I'd say the former.) Of course, this assumes we're using Link from OoT, which does not seem to be the case with Link in the current Super Smash Bros. game.
Do they have time to prepare or not?
That does not appear to be the case, as the original poster made no mention. It just seems to be a versus match.
PT's strength really depends on this, because of the question "What if PT doesn't have his god-legendaries with him at the time?". Also for other characters: "What if Sonic doesn't have the Chaos Emeralds or enough rings to go Super?" "What if Ness doesn't have time to go get some kind of holy weapon?" I could go on but you get the point.
Maybe it's just that I spend time at FactPile, but the standard is that characters are from the most recent media. In this case, the most recent games would be used. This standard is only dismissed if the original poster states otherwise.
Are they fighting to the death? Are they fighting over territory? Are they fighting over a magical artifact (Like the Triforce, a CTF Flag, or something similar?)
This is a question of who is canonically the strongest character in Super Smash Bros. In other words, they're just death matches, or whatever other means that can be used and will be consistent each time. That would mean even battlefield removal is acceptable.
This really matters because if it's a fight to the death, the tier list would go: The Invincibles (Ganondorf, Possibly Kirby, etc.), then the Sometimes-Invincibles (Super Sonic, I forget who else) and then everybody else. If it's over territory, then being invincible doesn't matter if you can just get repeatedly knocked into space. If it's over some magical artifact, then the fastest characters are actually top tier (Sonic and Samus, for example) along with people who have mind-control powers (Mewtwo: >>Drop the flag and walk away<<).
I think it's more nuanced than that.
Thing is, fighting to the death (or even just to KO) isn't necessarily all that important in most contexts. Fighting over territory or magical items is going to be more important in the long run.
But that's not what the original poster said.
In the end, the question is too vague to really be meaningful, and since these are fictional characters it's hard to really measure their power.
Not if they can be quantified, which I've been doing.
For example, the ability to create a world would, to some people, qualify one as a god, so that actually would make Ness god-like and therefore he might be able to create a holy weapon.
When did Ness create a world?
Thing is: What about psychologically? Would he even think to do that? Would he get the idea to make one before Ganondorf pummeled his face in? I don't think he would, and if we're going to talk about combat strength then we also need to consider competence.
Again, these battles are going to be more nuanced than you're making them.
But again, that's only under one ruleset. Under a completely different ruleset, Ganondorf beats them both, or maybe Ness beats Mewtwo and Ganondorf, or maybe Mewtwo is top dog. Thing is, none of those rulesets are more valid than any other and people are going to naturally choose which ruleset favors their favorite characters.
This is why things like physical strength, speed, durability, endurance, firepower, &c. are all put into consideration. It should be apparent that things are going to be more nuanced, but what you're doing here should be obvious. In one instance, I could say, "Well, if Samus only had her standard equipment, then Master Chief might have a better chance if he receives other equipment."
To avoid favoritism, other people are going to be giving their input and calling out people who are pulling things out of their behind. If a rule set is made by the original poster, then the original poster would be better off not participating in these matches. That way, no one else who is involved in the debate is making up their own rule set.
Now, about Pokemon Trainer: I kinda feel like giving him every single pokemon is cheating somehow. Lately a lot of the legendaries come to the trainer via plot, so there's no real question about whether or not he'd get them. However, canonically, he usually only gets ONE legendary (aside from Mewtwo, Mew, and others like them) so it's more likely that he'd have control over Time OR Space, but not both. Also, that's only if you assume that PT is the player character and not just some random trainer who only has the three starters (the player character only has one starter unless he goes well out of his way to get all three, so there's a good case against PT being the player character).
Unless these legendary Pokemon demonstrate what is said of them, then the Pokedex needn't be considered. Doubting in-game lore shouldn't be a surprise, either. You could say the same of the lore in The Elder Scrolls. Either way, it doesn't matter. The original source for Pokemon are the games, so any external source is secondary.
Either way I think a real contest would have to be a measure of "How many favorable matchups does each character have?" instead of "Who is the best at beating <insert character here>".
Those aren't mutually exclusive.
EDIT: Also it's worth noting that while the Triforce does grant wishes, it does not grant them immediately, and the wishes are not guaranteed. Ganondorf wished to rule Hyrule in LttP. What he ended up getting was control over the Golden Realm (in later games known as the Sacred Realm) and an army big enough to potentially control Hyrule... except that he was stopped by a kid with a magic sword. I don't know about the Star Rod but I think it's a bit more instant than that, though it may have other limitations.
It doesn't matter either way. People should not ignore a character's personality. That the Triforce is only ever used once by Ganondorf in different periods of time makes one question whether or not more than one wish can be made, or if the character in question is satisfied with the wish. Never do we see Ganondorf or Link, for example, wishing each other out of existence, so we don't have to worry about anyone trying that nonsense in these matches if either one ended up with the full Triforce.
The same can be said with the Star Rod. Bowser is so stupid that he doesn't use it for anything else, but this also depends on which Bowser we are using. If it's not the one from Paper Mario, then he doesn't have the Star Rod and the discussion on that doesn't matter.
I would say the strongest would be pit or Rosalina. In raw power palutena would be up there.
Pit is powerful. We can't say anything about Rosalina because she didn't do anything special. Palutena doesn't demonstrate any worthy feats, but inferentially, she's above Pit on the tier list.
Gannon can be beaten by the master sword, it can be assumed that arrows of light fired by a bow crafted by a goddess could kill him.(not link's arrows which are coated in light, Pit's arrows are made of light)
On page 34, I addressed this, so it's up to anyone who wants to defend Ganondorf being invulnerable to all but the power to repel evil needs to prove it.
Pit has defeated many GODS
Being a god means nothing. Demonstrating feats proves something.
By the way, if Pit gets the Great Sacred Treasure, that pushes him way up on the tier list. Otherwise, I'd just say he should have the original Sacred Treasures so he can have indefinite flight.