Klitschko looked terrible because of Fury's awkward style. Not pleasant to watch but effective.
Father time doesn't lie. Review the odds for Fury Vs Klitschko and then AJ Vs Klitschko. That will help tell you who had the greater victory.
No, Klitschko looked slow and lethargic. He damn near looked shot. I think you need to rewatch the fight. That's why I was surprised with how Klistchko looked against AJ bouncing on his feet throughout the fight with a bit of pep in his step.