Mike Young, although he's had such a monster year that the word will finally be out. At the start of 2005, he was a 28 year old SS with back to back 200-hit seasons, 20+ HR power, 650+ at-bats, decent speed (12 SB in 2004), and hits in one of the best lineups in baseball in one of the best hitters parks -- and he was BARELY in the top 50 in most Top 100 lists I saw, while Tejada was a lock for top 10 and even top 5.
He's now made another step up in 2005, with improved numbers across the board, including a nice step up in BA and power (although his steals were down).
I am the Master. Don't question the Master. Just do what he says and be proud.