depends a little on format and where you are drafting....but i rank them as Fielder, Votto, Pujols. Fielder barely beats out Votto only because he has great hitters around him and has been super consistent.
Fielder is going to hit 4th is a lineup between Miguel Cabrera and Victor Martinez. He is going to see a lot of pitches. He has proven 45-50 HR potential (although unlikely in Detroit/the AL), and should hit between .280 and .300. If he finds a way to get back to 40-45 HR range, he could easily make it a Detroit MVP three-peat in 2013.
Votto, on the other hand, hits between Brandon Phillips and probably Ryan Ludwick or Jay Bruce...will be much easier to pitch around him. Votto does however play in an overwhelmingly hitters park.
Pujols is a good backup plan, but probably is not a truly elite guy anymore. 25/100/.300 would still be pretty good though.
I'd put it Votto, Fielder, Pujols. Granted Fielder has a good lineup around him but like another person said that field in Detroit is big. I'm a Votto fan and am hoping for a 2010 season like performance from him and his new knee! It always helps when you can get 10+ steals from a good power hitter and live in a ballpark like Cincy with a short porch right field. Along with the said new knee there is also a increased risk of injury as well.
I agree, the reward for Votto is higher, but in addition to hitting in a better lineup, Fielder has demonstrated his ability to consistently play in 150+ games, which Votto hasn't done. The health risk makes them neck and neck, IMO.
"This guy leads the league in most offensive categories, including nose hair..."