Aldridge's position is also PF, but due to his height and the lack of Centers people are saying he is a center. But since Bargnani can shoot from outside, he isn't.
Aldridge 6-11¼ 234
Bargnani 7-1¼ 249
Bargnani is taller, heavier, and prob more athletic than Aldridge, has a better outside game, and from what I hear has been working hard on his post game. Though, I'm sure Aldridge is better in the post at this time.
Aldridge prob is a better defender, 'cause apparently Bargnani is a little lost on defense.
Like I said, I would be happy with either of them. I think they are both going to be good players. I just think that Bargnani will be the better choice.