Kind of a tough call here. I have the entire Marvel run of Sleepwalker, but its been along time since i've read it and it wasnt that good anyways. First off, I think Sleepwalker can actually throw with Strong Guy (Sleepwalkers not a slouch). He also has that pink ray/laser that he can emit that distorts things. He can fly. BUT, he needs a human host. Its not uncommon for Sleepwalker to disappear in the middle of a fight due to the human host waking up, so its hard to say.
I'm going with Sleepwalker due to the fact that Strong Guys an even dumber idea for a character and whats up with that hairdo?