Serra over GSP easily IMO. I don't think it's even a question really. Yeah Cro Cop is a very good fighter but Gonzaga had a big head and nothing to lose so I thought he could maybe give CC some issues. Never thought that much of Jardine.
It's just EVERYBODY thought GSP was the fedor of the UFC. He was focused and nobody thought he could be beat, especially after he completely dominated Hughes. Then a natural lightweight and short Matt Serra who beat a bunch of other natural LW's at WW comes along and nobody gave him a chance. Then he connects and GSP finds himself tipsy.
CRAZY!!!

but at the same time...

because of all the hype...