1. The Flash (c'mon, Wally West can mainline the Speed Force)
  2. The Hulk (see Colin's answer, or remember the movie - the madder he gets, the bigger he gets)
  3. Plasticman (or his son in Kingdom Come, Offspring)
  4. Brainiac
  5. The Batman (has the robotic suit, but can be a hero without it)
  6. I'm going with the Justice League, just because I prefer the DC Universe.
  7. Aquaman (whose dolphin name is "Swimmer")
  8. Robin Hood w/o trick arrows, Green Arrow w/trick arrows
  9. Dunno - I've never seen an episode of Wild Wild West (or The Avengers)
  10. Zorro (western style), Leonardo (eastern mutant turtle style)
  11. pfffttt - Batman. No contest.
  12. She'd absorb her own power. Or maybe it would be like magnets with like polarity - she would be repelled. (Peter, being the stronger "magnet," would be standing there going "Huh?")