OK here we go.........again
in no order: Marco Ruas, Rickson Gracie, Randy Couture, Ken Shamrock, Igor Vovchanchyn
This is in respect to the fighters when they were in their Primes - at their absolute best. Igor and Ken have gone into freefall as they have gotten older but 10 years ago these were the best around and would have held their own today. Randy is a phenomenon but his best has passed, yet he has achieved things no1 else has or possibly will. People like Fedor Emelianenko etc have years left to cement their places, im just going by the way they fought and the impact each man made on MMA
Just my opinion