Why can't people deal with the fact that the game has evolved since Pride ? Fedor was great back in the days because he was the only athletic and well rounded HW in the business. Now it's pretty much the norm. So no, Pride Fedor would not run through the bellator HW, and he would get his ass handed to him against the actual top 5 in the UFC.
Edit : Fedor is also too small for modern HW. Back in the days guys were smaller or just fat. There wasn't many athletic 240/250 pounds guys.
He will definitely be remembered as one of the greatest, but time goes by ... :/