@Knowledge_King: I would heavily disagree that Thor only lost because of he was caught off guard. Sure the initial blitz in Uncanny Avenger's #10, may have caught Thor off guard. But then Thor got back up, blitzed Sentry back, and said he would kill him in Uncanny Avenger's #11. He then immediately for oneshot by Sentry's energy blasts.
Plus this was all after Seige #3 where Thor already lost to a non- Death Seed Sentry, so he of course knew how powerful he was.
And for KC, weaker? He's oneshotted regular Superman. You honestly think Thor stomps regular Superman? Cause that's universallly considered a close fight... which means that KC Superman should stomp Thor 1v1.