Three of the greatest heroes of all time... and Captain America.
I'm just kidding, Captain America is also a really, REALLY big hero. I never really got into him, but he's still cool. Except for the little wings on his hat.
The other three, however, are among my favorites (Superboy, oddly enough, is my absolute favorite). Batman is immensely cool, Superman has his moments, and Spiderman is as full of awesome as you can get.