Spidey and Venom because both of them aren't easy oponents on there own so as a team they would hand IM's ass to him. Also Spidey and Venom have gone up against powerhouses like The Hulk and Juggernaut and won (well okay Spidey has I'm not sure about Venom) so you shouldn't underestamate them. All Spidey fans know that no matter what Spidey doesn't give up so Iron man may have an advantage but many of Spider-Man's opponents are more powerful then him but he finds a way to win and he has Venom backing him up. But this is pointless will see who comes out on top in the new ASM.