Which Yankees pitcher will have the Best Season?

When the season concludes, C.C. Sabathia will have the best season. He may eclipse 20 wins for the first time in his career and his ERA will be between 3.00 and 3.50. Burnett and Pettitte will both likely win 15 games and Hughes may follow behind, but they won't be able to match the ace. Lol at Vazquez contributing 3 of those 7 losses.