Ben 10 does have his fire form, but it wont be enough to melt this icy opponent. Iceman has taken many heat based opponents down in the past and I don’t think that he will stop now. Iceman’s battle experience may have been the deciding factor. He has dealt with opponents like the Avengers in the past, so he knows how to handle himself. Iceman wins.
Go Bobby!
Ben’s gotta chill now