15. Evan Longoria, 3B, Tampa Bay Devil Rays
Longoria, the D Rays first pick last year, is already the best prospect in the system, and in Tampa that's saying something. Last season, Longoria split time among three levels and hit .315/.360/.597. Yes thats right, a .597 slugging percentage. This year, in his first full season in AA, Longoria is hitting .274/.385/.520. Many people compare him to Milwaukee's Ryan Braun, but in reality he has a much higher upside. He is younger and has put up better numbers so far, and Longoria will be a 10 time all star and will eventually be the among the best third basemen in the majors.
