I don't think you can say Jon Jones quite yet as he has not been fighting near as long as fighters like Silva and GSP. In a few more years though if he sustains his winning streak, and I think he will, then he would certainly be on that list I think. Right now GSP can lay claim to that title as he has exhibited a long string of wins and consistently performed at a high level during his fights while largely outclassing the competition.

GSP.

Cain Velasquez fights bums in the HW division, so anyone that says he's the best is an idiot!

P.S. Silva is NOT burnt-out or too old -- he just lost to a superior opponent. You Silva fans need to stop making excuses for him. Lets not forget that Randy Couture held the belt at 45 years old, so Silva is not that old!

Defintly Jon Jones ..only way he is gonna loose if he gets disqualified..he's too good of a wrestler to be beat on the ground and too long to be beat standing.. Thats just my opinion

When Jon Jones maintains his level of dominance against people his own size or slightly larger, i will give him the nod.

Cain Valesqueze. He could beat both Jones and GSP.

1. Jon Jones

2. Anderson Silva (c'mon it was pure luck!)

3. Jose Aldo

4. GSP

5. Cain Velasquez

GSP, has more consecutive Title defense then any one else

Even the biggest Anderson silva fans have to admit he significantly tarnished his legacy last night vs Chris weideman. Basically, I saw a burned out legend overburdened with the pressure of maintaining his stature as 'best fighter o all time'. So the question now is who is the best? Jon jones? Georges st Pierre?