Hardy is the most deserving at the moment that hasnt already been beaten by GSP. Rumble hasnt even fought any upper B level fighters yet and was way off weight in his last fight. There isnt anyone else that is really close to a shot at the moment. I think GSP will handle Hardy without to much resistance, but its mma and anything can happen. Hardy looked like a beast against Swick and will probably come in a lot more prepared for GSP. Im actually looking forward to this fight. Everyone love GSP and Hardy is a pretty entertaining dude in and out of the cage.