Ares Stomps him with Mjolnir 10/10 Ares with Mjolnir stomps Colossus.
colossus lack the skill do do anything with Capt. sheild but block with it and maybesome close melee shield bash as Ares who can must likliy use must of mjolnir abilites and wield it as a weapon very effective. hmmm... since ares is a God a God blastwould put Colossus down.