The reason I have Shaq above Duncan boils down to this: For the 8-year period where the primes of their careers overlapped ('97-98 to '04-'05), if I was a GM starting a team and my first pick had to be Shaq or Duncan, I would have picked Shaq over Duncan each and every year. Not until Shaq's body started to decay after he had played 13 seasons and logged 39,800 minutes would I have taken Duncan over Shaq.
While Duncan in his prime was guarded well one-on-one over the years by such players and athletic equals like Rasheed Wallace, Jermaine O'Neal, Ben Wallace, and Tyson Chandler, there was no answer for Shaq in his prime. No one could guard him or even slow him down one-on-one or even hope to match him physically. No one. He destroyed everyone. You had to double him or hack him. Olajuwon at his peak couldn't handle a young, raw, slimmer Shaq (Shaq averaged 28.0/12.5/59.5% in '95 finals, look it up). Ewing couldn't handle him. Shaq made chopped liver out of elite hall-of-fame caliber centers like Mutombo and Robinson and competent ones like Longley, Divac, Sabonis, and Smits during his LA title run. He lit up Ben Wallace when no one lit up Ben Wallace in his Defensive-Player-of-the-Year prime for 27/11/63% in the '04 finals, including a monster 36/20 game 4.
It's close, and they both had great careers, but just watching both of them over the years, for the above reasons, I give the slight edge to Shaq for his unrivaled impact and dominance.
While Duncan in his prime was guarded well one-on-one over the years by such players and athletic equals like Rasheed Wallace, Jermaine O'Neal, Ben Wallace, and Tyson Chandler, there was no answer for Shaq in his prime. No one could guard him or even slow him down one-on-one or even hope to match him physically. No one. He destroyed everyone. You had to double him or hack him. Olajuwon at his peak couldn't handle a young, raw, slimmer Shaq (Shaq averaged 28.0/12.5/59.5% in '95 finals, look it up). Ewing couldn't handle him. Shaq made chopped liver out of elite hall-of-fame caliber centers like Mutombo and Robinson and competent ones like Longley, Divac, Sabonis, and Smits during his LA title run. He lit up Ben Wallace when no one lit up Ben Wallace in his Defensive-Player-of-the-Year prime for 27/11/63% in the '04 finals, including a monster 36/20 game 4.
It's close, and they both had great careers, but just watching both of them over the years, for the above reasons, I give the slight edge to Shaq for his unrivaled impact and dominance.