He is the epitome of “drive for show, putt for dough”. He’s not as long as some but long enough and more accurate than most. Combine that with a great iron game and lights out putting and he is one tough competitor.
Spieth’s mental game is right up there with Nicklaus and Faldo in his prime. Spieth doesn’t have the distance Nicklaus had early in his career, but Spieth has the short game Jack never had, except putting. Jack was a great putter.