I eat a banana and drink water pre-ride, sometimes more stuff, just depends on what i'm feeling like.

What I've liked riding:
Clif Bars
Powerbar Gels
Peanuts
Babe Ruth candy bar
1/2 Gatorade, 1/2 Water mixed

What I don't:
anything too sweet (candy that's not nut-based)
full-strength gatorade
HEED (grossest, chalkiest stuff ever. ew)

post ride I make a smoothie, it has...1 cup yogurt, 8oz. Milk, 2 bananas, and sugar or honey. For protein, I make an omelet or eat leftovers of whatever is around.