Fedor's striking was much better than DC's and had better stamina, Cormier might take him down but there's a chance Fedor trips/throws him too. Fedor by unanimous decision.
When Cormier burst onto the scene in strikeforce his nickname was Black Fedor. They’re pretty similar fighters with Fedor being superior in almost every aspect.
As much as i adore Prime DC he's the delusional anwer. Prime Fedor in Pride was unreal!! He must be in the conversation as the greatest Martial Artist of all time