Two different types of guys, but I would guess at the same level of prospect value. And both with strange first names.
Mills is looking like he's limited to 1B, but he has been described as having plus-plus power, and looks to be on track to probably being a contributor to the major league club starting in 09.
Fowler has more room between where he is and where he can be; his numbers slipped last year, but he was coming alive when he got hurt, and he seems to be developing plate discipline. His frame suggests plenty of power, but it has been in evidence yet.
Who will have the better career?