Probably the Hulk
abomination, because he is strong as hulk.
The hulk
Hulk ftw!
hulk.
Hulk.
HULK!
The Hulk would beat him up. Martian Manhunter will say that Hulk is making a fool of himself but Hulk would punch him in the arm. Hulk would punch him into the wilderness and fight him there. Hulk will punch him 5 times to knock him out and get out of the wilderness.
Of Course The Hulk since he has Unlimited force wich depends on his level on Anger, maybe in the beginning of the fight Gladiator would be even with Hulk but at the End Hulk would kick butt because he would only get stronger and stronger as the fight progresses.
HULK !
devil hulk and he is not the strongest hulk
captain America is smarter and faster -Captain America is not smart enough to defeat The Hulk. It takes much more than one single person to defeat The Hulk. Especially considering that Captain America is only an enhanced human being not a Super Powered human being. He can only lift 800lbs max where as The Hulk's base strength is 100 tons. The Hulk would crush Cap.
That would be a good fight but in the movie "Hulk vs Thor" Thor shot a bolt of lighting at Hulk and the Hulk didn't even get hurt. So since all Raiden can do is shoot lighting then the Hulk would win.