heroes:
Spiderman, from, well Spiderman. Gambit, from the X-men cartoon I used to watch as a kid. Nite Owl (new one), from Watchmen. Kick-Ass from Kick-Ass, a dorky guy turned superhero is just too much like me to pass up.
villains:
Lizard, also from Spiderman. Dr Manhattan, from Watchmen (he goes beyond good and evil). Rorschach, also from Watchmen. Venom, from Spiderman. The Joker, from the new Batman films.