the thing that holds him back ARE his albums IMO. People have a reason to hear Pharoah's albums based off his presence alone. Prince Po has to work a little bit harder at it than monch, but I think he's every bit of good as an emcee.
He has said that he purposely works with producers who are slightly to the left of him, which I think is a step in the right direction. He just needs to put a more coheisive album together.