Chakhkiev is one of my favorite fighters, and you can see why here in this video of his 1st round KO:
http://www.youtube.com/watch?v=7w6bbZY2YBM
I agree, Chakhkiev is one of my faves as well
I'd say he is easily the best up and coming cruiserweight. Mateusz Masternak is also quite good, but out of the two, Chakhkiev appears much more advanced.
Of course Chakhkiev had a sensational amateur resume, winning Olympic Gold, and as a pro his power has looked frightening.
One of the best up and comers in the sport and Id say Rakhim is pretty much Guaranteed to become a champion soon.
The question I have is how he will deal with speedy, mover type boxers. That remains to be seen but I am optimistic.
Really like what Im seeing out of Rakhim and in all honesty, he has the potential to become not only a champion at cruiserweight. But a champion of all 4 titles. He has the potential to be Pound 4 Pound, unified champion ala Klitschko except in Cruiserweight.
I can almost guarantee you Rakhim will be a champion at some point. I also think he can take it a step farther and become great by winning multiple titles.