Oh bother, I was dreading this day, because I know it's going to take me FOREVER to type this...
OK. Easy one first:
Jiggs Chance: 70%
Everyone seems to like Gematsu, right? Well, remember how the guy was saying that there were debates about cutting Ness or Lucas?
If the very fact that this can be debated is any indicator, Jigglypuff being an original twelve isn't as strong a credential as people make her out to be. She still has a very good shot, most definitely, but outside of her waning popularity, her perfect attendence, and unique moveset, she doesn't have much going for her in a franchise with other characters grappling for one of the precious slots.
That all said, I fully expect Jiggs to be in this game. Whether she's in the initial version or not is what that rating is.
Want: 10%
I don't like Jigglypuff. There, I said it.
She is the one character, outside Dr. Mario, whose inclusion in Smash just doesn't make sense to me. Pichu represented the baby Pokemon, and was cut when its time passed. The Ice Climbers, while outdated, still represent their own franchise. Jigglypuff is just... there. She was popular in the anime, sure, but so were many other Pokemon. It boggles my mind how Jiggs could have gotten in before Charizard, Mewtwo, and Meowth, how on earth did she beat Meowth!!! He's the second most iconic and recognizable Pokemon of the anime for crying out loud!
Mewtwo's Chances: 95%
I've said it before, and I will say it again: No character even comes CLOSE to having the credentials that Mewtwo has for being in Smash Bros. Want a list?
1. One of the most popular Pokemon of all time, in all the polls I've seen ranking the greatest Pokemon, he either tops the charts or is in the top 5.
2.
Most popular request to get into this game. By far. Globally. There is no other character that would make the Smash community more hyped to have in the game then Mewtwo coming back, I feel completely confident in saying this.
3. Veteran character is a veteran. If he's not in the initial build he will definitely come back as DLC,
people want him in this game! (Which is the only reason there is 5% missing from the initial score: They might advertise DLC with him)
4. Unique moveset. If you think Lucario's a clone of him, you either don't know what a clone is or haven't played Melee. -_-
5. Legendary Pokemon: One of the most iconic parts of Pokemon is catching the ultimate Pokemon in that game. And Mewtwo is the best of the best when it comes to legendaries. I have the same thought cycle when it comes to Sceptile and the starter triangle, only Mewtwo has a ton more going for him.
6.
TWO Mega Evolutions. One of two Pokemon who was so iconic and important that they gave him
two Mega Evolutions! They used those to advertise the games, the deciding factor for which game I was going to get was the X and Y forms of Mewtwo and Charizard, and I know I was far from the only one. And speaking of his Mega's advertsing the games:
7. Mega Evolution posterboy! While Lucario was the main focus in the games, Mewtwo was the focus
everywhere else. He was the Pokemon they advertised the Mega Evolution concept, they gave him a whole movie because of this role, and both Megas are appearing in the next one. He is one of the most imporant Pokemon in the anime right now, something Sakurai went out of his way to say that was one of the things they looked at for Pokemon characters.
8. Villain... Anti Hero? Person of questionable actions? Whatever. He brings a breath of refreshing malicious air to a roster compromised entirely of good and righteous people. I mean, all we've got at this point are Bowser and Dedede and the eternal glutton known as Kirby. Smash needs more villains!
9. 6 Pokemon reps a problem? Because having 6 in Brawl when we had less characters was a travesty?
10.
The Ridley Theorem Teasing. Wait, what? Teasing you say? Yes. I don't know how people keep forgetting this, but
Sakurai went out of his way to tell people that he was considering including Mewtwo in the next Smash Bros games. He didn't have to do that. He could have kept his mouth shut, let the Pokemon representatives sweep aside the question, and move on. But no, he told everyone that the
most requested character was being considered for Smash Bros. And there is more!
Remember the Greninja trailer? How everybody thought it was Mewtwo? Well:
But seriously, that trailer was
designed to make you think it was Mewtwo initially. There was no reason for that, lots of people reacted poorly because they thought it was Mewtwo and got dissapointed. This was an incredibly stupid move... unless it was setting people up for an even better reveal in the future.
Whew! Pretty sure I'm forgetting a few things, but I will edit those in as I remember.
As for want: 100%
Come on, it's Mewtwo for crying out loud. Do I really need to say any more then that?