GSP destroyed Hardy. However, I'll give Hardy credit...he showed his toughness and determination...how that guys arm didn't snap into a compound fracture I do not know.
As for Carwin...he made Frank Mir look like a b*tch! However, while he does have powerful punches...if he gets into a power battle with Lesnar he will get his ass handed to him. I think the best chance for Carwin is to beat Lesnar with technical skill...get the big man to the ground and try to make him force a mistake and apply a submission on him. Trying to trade blows with Brock is just stupid imo. Note...I am not even that big of a Lesnar fan, but the man is a freakish athlete.