I'd say wolverine, I really wish they hadn't cheapened him with the quadrillion copies of him but the original wolverine is pretty original. But anyway, a lot of DC fans give marvel a lot of crap saying that it is 100% rip off material, but what do you think is Marvel's best idea for a hero
Spiderman, Wolverine, Storm, etc. There are plenty on both sides that are orginals, and even if they have similar powers that doesn't make their personalities alike. She Hulk and Wonder Woman are both super strong ladies, but they couldn't be more different personality wise.
@Twentyfive: Cable is your generic muscle-bound, big-gunned, part cyborg, 90s hero. The only thing that differentiates him from the rest of his kind is his telepathic, and telekinetic abilities which a lot of other heroes had years before.
Eddie Brock Venom. His melodramatic sense of lethal justice and damaged mind is delicious unique among anti-heroes. He's not all gritty and vengeance based, just crazy and killing-based with a schizophrenic conscience. Pretty rad.