Jones is defintely a great fighter and from what he has done will already definitely be remembered. But "one of the greatest", I think its way too soon for that. Like ts been mentioned, I dont think he has caught up to Wanderlei yet when talking about the 205 division. One fight people forgot to mention is his split decision loss to Hunt, a guy not too long ago was being talked about going for a title shot at HW, Silva has the body of a MW, oh and anyone who watched his first fight with CroCop knows he really won that fight, but they had that dumb special rule that a decision would automatically be called a draw... Damn, Wanderlei was a beast!
I think that the 205 division has more star power, their fighters are more marketable, for instance (not trying to put anyone down here) beating Rampage at this stage in his career is really nothing to brag about, hell Bader did it, but it carries a lot of weight given his name. Im just trying to say that I think that what Aldo is doing right now is just as good if not better than what Jones is doing, but I dont see his name being thrown around as an all time great quite yet. Dont want to sound negative, JBJ is a beast and is full of potential, I would definitely put him in the great category, just not yet on the Greatest category.