EDIT: How is that low for Falcon? Right below Ness (or Fox, I suppose) is his rightful place, and he's earned it. DK I place at the top of low tier, because, like Low Rider apparently, I only believe in 3 tiers. DK's only that far down for me because everything he can do is situational and/or relies on surprise.
You don't even need to DI out of that combo, Daedatheus. Pikachu's one of my mains, and utilt-spam will never work against a reasonably good player of any character. Fox in particular, since he's in discussion, can tech out at low damage (though unlike certain other characters, he doesn't have sufficient range to escape at middle damage). Also, sweetspotting quick attack is pretty hard, but it takes a **** good edgeguard to even make pika need to sweetspot it. Between his ability to break through guards and quick attack's versatility (there's at least four options in most recovery situations, only one of which involves the edge), that's only an issue at the kind of damage where the next hit's gonna KO you anyway.
Sirhc, you make good points, but you have to admit that Ness' recovery is pretty easy to **** with. Hell, if you feel like being a douchebag, you can even just take a hit from the up+b and then recover yourself. Though it's probably harder for characters with less awesome recoveries than pika and kirby...and ness, for that matter.
Anyway, my rankings:
Top:
Pikachu
Kirby
Fox
Ness
High:
Captain Falcon
Jigglypuff
Yoshi
Mario
Low:
Donkey Kong
Link
Luigi
Samus
As for specific matchups (only the ones near the top)...
Pika > Kirby
Pika > Ness
Pika > Fox
Kirby = Ness
Kirby > Fox
Ness > Fox
Falcon > Fox
Jigglypuff > Kirby
Of course, that's all based on my experience, and will probably change as I start understanding the game better. And Fox players, he'd be below ness if you guys weren't so good. I have no clue how you do half the **** you do, but keep doing it. Fox is the one character I've never been able to do crap with. I do better with ****ing link.