rafter was far more talented. simply a better athlete.
take roddick`s serve away on grass and what does he have left?
Take away Sampras' serve and he's in big trouble.
Take away his volley's and he's really screwed.
Make him play on one leg and I'd kick his ass (well, it would probably be closer at least).
But seriously, Isner and Karlovic both have a better serve than Roddick. Haven't seen them in a Wimbledon final just yet.
EDIT: It's actually amazing how underrated Roddick is. I wonder how many other men that have been consistent top 10 for 10(?) straight years "suck" according to most people.
I'd go so far as to say that Roddick is the most underrated player (in tennis history?). Might make for an intereting thread. Everybody loves to jerk off over Safin, Nalbandian, etc. Give me a guy that delivers year in and year out over a guy that has "amazing potential" any day.
EDIT: Actually, the most underrated player has to be Nadal. The only moonballing mug to win 10 slams (and make it to 15 finals).