N-air NEVER autocancels and the midair ending lag of it is horrible. True enough it has pretty low landing lag, but it's not exactly safe on block unless you space it perfectly since it doesn't have huge shieldstun or multiple hits to **** shields.
Entirely incorrect, the issue is that when a move connects with anything it causes the animation of it to prolong and become more susceptible to punishment. You can use this to your advantage but it causes moves like a shielded nair to turn from something that DOES autocancel on landing (Fair's lag would be described as minimal if used correctly, nair is instant the second your feet hit the floor) to something that can be picked right out of the air if blocked correctly.
If we're going to do the whole ike vs ganon thing, I'd like to point out that there's little ganondorf can do about ike's aether recovery if done properly, which in this case would be done low (enough to have your feet land on the stage but well out of safe meteor range). If you dive down after him you stand to lose more than you do to gain, especially if any of your aerials catch his super armor because it's one of the few things that will cause YOU to sink like a rock after connecting. Your aerial game is worse, make no mistake about it, for one the down air may only autocancel on full hop but the 3 operative things are.
1- It ends before his feet hit the floor so he can actually double jump or move before ever becoming grounded.
2- It is a sex hit and will have a hitbox for longer than when he just throws it out
3-
It's a sword, so it doesnt matter if he full hops it if it covers the entire area below him to the ground, which it does
Furthermore ike has 2 of the best anti aerial specials in the game. Your ground game against ike is honestly better, your jab outranges his by quite a lot so if you keep him at swordlength you beat him on connection time for your farther moves.
http://www.youtube.com/watch?v=0jW7Xl_JJ1o
Note that
1) I actually do manage to lose this match after what looks like my win
2) That I'm not claiming anyone to be the end-all be all for their character
But importantly I'm going to point you to 0:39, where ganon clear as day shields my fair and even his ftilt can't make it out far enough in time to punish me for it. Secondly, I'm going to point out how much I whored a move that for some reason people forget Ike has, his grab. Ike's 2 best moves in this game don't involve his sword at all, and they link into eachother so seamlessly you can build someone to 100+ with just those 2 if you have to.
QD outranges flame choke's grab animation so worse to worst an ike can play chicken with you if he has to.
Less lag is false if the ike is playing correctly. On a "move by move" basis it boils down to tilts and ike has up tilt on you while you have down tilt on him. While ganon's up smash is wicked quick it has abysmal range, while ike's up smash when used correctly by ike is honestly not all THAT punishable, especially if he pivots it and brings the back end towards you. You're free to test this yourself, by the time you can do much of anything out of any response that isnt a power shield you're setting yourself up for a back air.
One more thing, go to 1:57 and tell me just how exactly that was "right next to the stage", don't underestimate aether.