Shaq, I know.
As for punk rock, I like the NY and DC stuff circa '87 = Gorilla Biscuits, Judge, etc. You know, the Sunday Matinee scene... Some newer good stuff is Lifetime, The Explosion and a few others.
As for emo, mostly whiny stuff like Sunny Day, Jimmy Eat World, Jejeune (sp?) and those kind of things. I like some older noiser stuff that used to be Amphetamine Reptile and those labels, Heroin is the only one I can think of right now. I used to love Drive Like Jehu, Shellac and things like that as well.
I even played guitar for an emo band that put out a "7 on Crank! Records in Santa Monica a few years back. We were pretty worthless, but I think the single did pretty well anyway, we did two tours of Europe on it.