El Dude said:
Good stuff, Broken. I assume that you'd give Sampras a 10? Or a 9.5? He seems to be a good example of a great serve whether or not it is an ace. Same with Federer, but even better.
So what would you give Rafa or Novak? Andy? Etc. Raonic seems like a 9 to me, Dimitrov an 8.
Sampras is an easy 10 for me due to the combination of both the first and second serves (perhaps the best second serve in history), as well as his ability to find that serve in the clutch. His serve gave him free points, aces, and set up the serve and volley. Add to that a terrific second serve and it's as close to perfect as it can get.
Nadal's serve is anywhere from 6 to 7.5 depending on how well he's serving. For instance, his serving in late 2010 is even higher than 7.5. I'd say it was an easy 8/8.5 (but that was too brief a TCperiod to take into consideration). His serving at the North American hard court season last year was a good 7.5. His serving when he's just spinning it in (like he is currently) is a generous 6 (maybe even less). But, on average, Nadal has a serviceable serve. I wouldn't call it anything more or less. Often times, he'll deliberately take off pace because he doesn't want the ball coming back at him too quickly so he can get the necessary time to get set for the next shot and open up the forehand. He does have decent placement, and knows how to use it effectively to set up the rest of the rally. It compliments the rest of his game nicely. Of course, it has a lot of shortcomings such as not consistently giving him free points on crucial points, especially in certain match-ups... His second serve is extremely predictable and at times quite attackable, yet there must something to the spin he puts on it because not a lot of people actually attack it (and Murray talked about how tricky it is). But yes, even if it's not attacked, it's still extremely mediocre. To his credit, he doesn't double fault much. And of course, we have to mention how high his first serve % constantly is, which his a plus.
Novak is a 7.5 server, I'd say. Perhaps 8 on a really good serving day. Ignoring the phase he went through when he was really struggling with his serve (mid-2009/2010), he's got a terrific flat serve out wide on the ad court, and a generally good first serve all around. His second serve, in my opinion, is one of the most underrated shots in tennis. It is just so difficult to attack, and he'll often hit it with terrific depth and surprising pace.
Murray's serve is the weirdest one for me, since it at times it looks like a 6, and others it looks an 8.5. Among the big 4, he's got the biggest serve. Yet, he often won't go for pace, and his first serve percentage is usually the lowest out of the top 4. His second serve is a weakness too. Predictable, attackable, and generally gets him behind in the rally. I'd say Murray is a 7.5 server too, but better than that on a good day.
Raonic is an easy 9.