I am certainly skeptical about Dalbec's future production, but I am about Voit and Torres, too. It's all projections and speculations, and Dalbec has put up some pretty decent numbers in his first 156 games:
.243 33 94 (.308/.511/.819)
His OBP in the minors was .362, and it was .374 in college. There is hope he can improve on that while not losing the power he has already proven to have.
Unlike Voit, he has stayed healthy and looks to be in good shape.
Now, granted, Voit has had some amazing short stretches of awesome power, AND he gets on base (.357 career OBP). No doubt, if he is 100% healthy, he has the current edge over Dalbec and has twice the PAs of ML experience. It took him 5 years to double what Dalbec did in 156 games, so you can see why his value is low. Then, look at the ages for the following numbers and think years of team control...
162 game avg:
.267 34 94 Voit (.867 OPS) ages 26-30 (He just turned 31/ 3 yrs of team control)
.243 34 98 Dalbec (.819) ages 25-26 (About to turn 27/ 5 yrs of team contol)