i used Colossus with OR, heimdall, angela and magik as teammates: OR obviously for the atk boost, the others to get the fury and the precision buff, so that i could control SS' power better. I took SS down to 33% before messing up and get ko'ed, so it's totally possible to one-shot him with colossus.
a variation of the above team would be colossus/OR/Emma/Sunspot (Max sig.)/Cable, so the you get the atk boost, the power rate boost and 60% Ability Accuracy during SPs, perfect to convert a lot of armor buffs with colossus' SP2 ^_^
I used Silver Surfer himself. The coldsnap you get from the node doesn't hurt him and counts as a unique buff for his burst damage. It also triggers willpower if you have it so you are healing the whole fight. It still takes forever though.
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a variation of the above team would be colossus/OR/Emma/Sunspot (Max sig.)/Cable, so the you get the atk boost, the power rate boost and 60% Ability Accuracy during SPs, perfect to convert a lot of armor buffs with colossus' SP2 ^_^