is obviously going to be subjective and no one will have the same list, but when I take into account how great they were for their times AND what they've meant to the sport, I'll put them in this order...
10.Shogun
9.Royce Gracie
8. Randy Couture
7. Big Nog
6. Chuck Liddell/Wanderlei Silva (tie)- both had similar runs- Pride had better competition but Chuck won head to head
5. Hendo- beast
4. Matt Hughes- most feared WW ever
3. Fedor- still the best hw ever although never fought in UFC
2. GSP- despite the Serra blemish, has fought better competition than Silva but he can't finish
1. Canderson (hasn't lost in about 7-8 yrs)
10.Shogun
9.Royce Gracie
8. Randy Couture
7. Big Nog
6. Chuck Liddell/Wanderlei Silva (tie)- both had similar runs- Pride had better competition but Chuck won head to head
5. Hendo- beast
4. Matt Hughes- most feared WW ever
3. Fedor- still the best hw ever although never fought in UFC
2. GSP- despite the Serra blemish, has fought better competition than Silva but he can't finish
1. Canderson (hasn't lost in about 7-8 yrs)