I was also impressed with Kos' chin, recovering ability and heart. He really does have the heart of a lion, even though you wouldn't expect it when you hear him talk outside the cage.
I was impressed with Thiago as well. I knew from before that he had dynamite in his hands, knees and shins and good takedown defense, but his tdd was even better than i thought. I was surprised that he was able to keep up the pace for the whole fight despite looking like a Belgian Blue. He's really going to be a challenge for GSP.
My only worry is that Alves will test positive (again) sooner or later. He just looks like such a roid freak.