Darvish will finish top-3 in AL Cy Young voting in 2013. Mark my words.
He's completely under-appreciated because it took him 2/3rds of his rookie season to adjust to American baseball. Rarely do you see a pitcher turn the corner as clearly and deliberately as Darvish did in August -- and there are plenty of articles out there explaining how he did it.
He may not crack the elite trio of Kershaw/Verlander/Price yet, but Darvish is definitely worthy of being lumped into the next tier. The risk is worth the higher ceiling compared to Sabathia, Cain, etc., who have settled into their statistical norms and are less likely to light up the fantasy world with a mind-blowing career year.
Its a fascinating trade-off.