18. Grant Hill
The Duke alum was electric through his first six seasons in the league, averaging 21.6 points, 7.9 rebounds, 6.3 assists, and 1.6 steals per game for the Pistons. But even after a series of injuries sapped him of his athleticism, Hill managed to remain a valuable starter into his late 30s. He didn’t make it out of the first round of the playoffs until age 37, when the “Seven Seconds or “Less” Suns fell to the Lakers in the 2010 conference finals.