FWIW, Harper has a lower K rate, higher BB rate, and Trout is benefiting from a somewhat high .356 BABIP. And Harper doesn't turn 20 until after this season. Both are awesome, though. i think trout has always had a high babip in the minors, though, and given that he's blazing fast and hits a lot of line drive, .356 doesn't seem too crazy. maybe a little high, but i'd expect him to be a high babip guy.