BoxRec

Povetkin: height 6'2" reach 75"
Ibragimov: height 6'2" reach 76"
Both held world titles and lost to Wladimir Klitschko by unanimous decision, but Povetkin was knocked down 4 times

Pov better at everything

Povetkin would outbox the southpaw Ibragimov behind his jabs and long range combinations to take a decision.

Povetkin wins by decision. Sultan was a very good fighter, but Pov was simply in a higher league in terms of talent and skill.

As for the ring action, they'd probably slug it out for five or six rounds, until Sultan realizes he's over his head. After that, Sultan fights a skilled defensive bout (like against Wlad) and lasts the distance.

Povetkin UD