Sorry to bother you but, we're talking about viable characters at the moment. Please come back when your character actually matters.
A character's lack of viability is no reason for total and complete ignorance. We have opinions too, you know.
Ganon does have a really good up air, I just wanted to bring up a point about planking and falcons up air while camping a ledge we can up air and have it auto snap to the ledge this is probably also the same for ganon so maybe they are similar in the respect.
Falcon can do this, but since Falcon's double jump is a lot higher than Ganondorf's, Falcon's uair leaves him a lot more open to being shield-punished than Ganon's uair. It's Ganon's superior space control that puts him far ahead of Falcon when it comes to planking on the edge.
grab-release -> killing options
Ganon's Flame Choke -> Ftilt or Dash Attack (depending on how fresh DA is) > Falcon's grab release kills.
Seriously, though, I realize that Flame Choke isn't going to be landing against opponents who know how to protect their space very often, but even with Falcon's speed, his grab range is just awful. An opponent who's in killing range from a grab release is going to watch out for the grab and is going to be extra careful against throwing out attacks that can be lag-punished by a grab.
Another thing I find that puts Falcon a tier above ganon is his gimping game. Now while everyone is sitting there knocking sour spot knee I must assume you've never been gimped by it? While it may be easier to punish than ganon's, you should probably take into account when it will be used. Knee will be used for punishing and gimping typically offstage, so if you want to nair a sour spot knee offstage be my guest (it also combos into up air for even more of a push off stage). It destroys(I use that term loosely not as a challenge to prove me wrong or start a ****storm) falco, ganon, link, nana, olimar, wolf, ivysaur, ness, lucas, and Ike.
I realize that the sourspot knee has its uses for gimping, but honestly, any time that I do get gimped by that move, it's more because I wasn't thinking and threw out an attack that Falcon punished because I didn't respect how much space Falcon can cover. I mean, if a character is dropping and sees Falcon fly offstage and thrust out his knee, the opponent really should be on to something, heh. This is again where Falcon's acceleration and awful space control fail him, because Falcon can't go offstage, bait the knee so the opponent can make an action, and then dodge it and punish it; he really has to commit to that one action or else he's not going to have enough room to recover to the stage on his own.
Also, you basically just listed a bunch of characters that can't really defend themselves off-stage, and those that can aren't going to be affected by the knee that much (like Ike, I mean seriously, if you see Falcon go offstage and you're not fending him off with Fair that covers his whole body, you deserve to get gimped). Ganon can do a lot of the same with Uair (better known as the Tipman), Nair, and Fair. I'm not saying that Falcon's gimp game isn't better than Ganon's, because it is, but I don't think it's worthy of being an entire tier better by any stretch of the imagination.