In terms of measurables and the way the game is shifting away from post play, you'd have to go with Gordon over Rabb. The skill set you have in Gordon is not coachable, the jumping, the athleticism, the thing that was pointed out numerous times, is Gordon's lack of an outside shot is going to hurt him in the long run and it has, at least in terms of PT, when he has been healthy. It's difficult to have a Payton and Gordon in the lineup at the same time, defenses pack the paint. Plus the Magic despite the record has vets in front of him in Tobias Harris, Moe Harkless, Channing Frye, in addition still has not defined his position, is he a 3 or a 4? A midseason coaching change hurts as well, different eyes....different views on a tweener. The plus, Gordon has time on his side and his all out mentality and athleticism, you can't coach, even as a 6th man, the guy can find a niche as an energy guy off the bench.
Rabb's game is still evolving, his ability to be ambidextrous at the glass is a major advantage, you don't know which side to pinch. He should be able to add another 15-20 pounds to his frame and become a true low post player, a skill set that he can develop over the years......ie Olajuwon. 6-10 post players are a rare breed now, 1 and dones, Dirk Nowitzki are the major culprits as kids play at 15 feet+ today.
