I read the Agassi/Sampras/Nadal biography. Agassi is by far the most honest and interesting of the bunch. The Nadal one, I have mixed feeling about, for starters his career isn't over yet (at least officially), and I feel the book is lacking in content. Still some of the parts were interesting, but it doesn't compare to Agassi's. A good read for big Nadal fans.
Sampras bio is the most boring of the bunch I found. There's way too many pages that are just wasted on tournament statistics and scores. Not much content in there too. As much as I loved Sampras game back in the days, his book is as interesting as his on-court attitude/emotion.
If your looking to get only one of them, my vote would go to the Agassi bio.
Last edited by Roddick85; 11-16-2012 at 03:58 AM.