He's a smart fighter and elusive, but I don't think he's as skilled as Anderson, Fedor or GSP. I think that will become clear now that he's fighting elite guys from here on out. There won't be any more Sokoudjous or Nakamuras for him.
I know he's good, but you indicated Lesnar would be in real danger of getting knocked out. He KO'd Silva, that's it. That's the only person he's ever knocked out.