Rules:

Both are unarmed (Thanos does not have the Gauntlet). Their stats have been equalized, the fight takes place in the same place Colossus fought Juggernaut.

Marvel Cinematic Universe:

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X-Men Series:

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Colossus looks more skilled to me

Huh. Bit of an odd thread, but I suppose I'll go with Thanos. Colossus looks to be a bit more of a brawler while Thanos's blows look a lot more precise and measured -- like a pugilist.

So finally a fight Base Thanos can win? Steppenwolf will be proud:)

Thanos, 10/10.

Colossus if he fights dirty. He's also shown that he can take hits from someone bigger and stronger than him, whereas we've never seen Thanos fight someone he wasn't clearly physically superior to.

Hmm, stats equalized, maybe Piotr

Thanos looked more skilled, but Colossus was using his skills to take on a physically superior foe, Thanos used his to body somebody inferior. By feats, Colossus is more skilled.

Piotr is gay and Thanos has some gayish personality. Ends in sex

I'll say Thanos, the whooping he gave Hulk was disgusting.

Thanos. I'd say he's more skilled and that's not surprising as he is much more experienced.

Thanos was called unbeatable without the stones in pure combat by Russos. Sure that probably applies physicals, but I don't see Colossus winning.

I was about to call out for hideous mismatch until i saw equalized stats. Even so, i gotta give Thanos a 10/10 victory.

Thanos, stats are equalized but he is much more skilled than Colossus as he's been alive longer and the whooping he gave Hulk was brutal, Hulk was larger than Thanos physically. Thanos should have no problem doing that to someone who's even smaller.