I'll just say Brooks Lopez because well I just love his game. He plays the position in such an old school manner. Stays down low gives you easy buckets and rebounds well. I know all the others problably have more talent than him but Lopez is a guy that makes your team better just by the stat line.
Bargs is number two just cause of his numbers. The guy has many flaws but he is still dripping with talent and can flat out score.