I've always been of the opinion that DC's prime was wasted in Strike Force. He has good wins there, but it's hard to argue that Barnett, Mir, and Bigfoot are better quality wins then Hunto, JDS, Ngannou, Werdum and Reem. Sure, Stipe dropped a decision to JDS once- but he finished him in the rematch. There's also the Struve thing, but shit happens. We can argue all day about what could have been had DC fought as a UFC HW sooner, but as it sits, Stipe simply has the better resume in terms of competition and quality wins.