Jeff, it's not clear to me how TW and JN compare as power hitters in their prime. I remember that first round Jack played with Tiger at ANGC, around 1995 or 1996. He was stunned, and said afterwards Tiger would win as many Masters as he, Jack, and Arnie did together. One reason was Woods' length: Tiger was hitting wedges into 15, on his second shot. Jack could never have dreamed to do that, I think, no matter what the equipment. And this was before the big changes to the ball, wasn't it?
I also remember last year at Baltusrol, Tiger was hitting 5 iron from nearly 230 for his second shot at 18. Jack hit his famous 1 iron in 1967 on the same hole from no further than that.
Curious to hear what others think.