Re: More talented: Sebastien Grosjean or Richard Gasquet
Gasquet's serve is underrated. Pretty good shot overall. But his fragile shoulder prevent him from using the full capacity of this shot.
And talking about his forehand would be a very long story but in a nutshell his forehand was pretty good in his young years. Then he modified it (with Benhabiles) and the shot turned into a wreck. Naturally, it was a good shot and he proves it when he uses his attacking forehand (lethal weapon) but his defensive and "waiting-shot" forehand was definitely altered, it's not his natural shot. Nevertheless I agree that Federer is more gifted than Richard in the forehand side of course.
Movement is not a technical skill so irrelevant in my point.