I think GSP is a great fighter with tremendous potential, however, I think Hughes will win. Sure GSP has improved but it's not as if Hughes has been sitting around scratching his ass. But the funny thing about combat sports is, you can never tell what's going to happen until it does.
How can you bet against Hughes. GSP is a good fighter but Hughes is the Champ and is the most dominant guy in the UFC right now. Thats saying a lot with guys like Franklin and Liddell fighting the way they are.