I don't think you can compare the 2 of them really. They played in different generations so it's hard to say who was really better. Comparing the greatest players of any generation really comes down to comparing their competition which is a difficult task in itself. It's like comparing Michael Jordan to Kobe or LeBron. All great players, but who's the best??? Many would say Jordan and with good reason. The clutch play, the championships, and he was doing things that nobody really did before him. But would Jordan stand out in today's NBA? I really don't know since the players are so much more athletic now as opposed to when he was playing so it's hard to say.
Jack and Tiger are both the greatest players of their generation...who's better? We'll never really know.
If I absolutely had to pick one I would say Tiger. Reason being his athletic skills are just outstanding in my opinion.