I think Jake Shields name should be up there too, he is on a 9 fight win streak and hasn't lost in 4 years, he has wins over the likes of Fitch,Condit,Okami and Charuto. Maybe Dana will grow a backbone and accept challenges from other org's, I know Jake's been calling out GSP for a while now. I'm not saying he'd win, but he would definately be a tough test.