Like Halladay, Hamels, Sabathia, Kershaw?

I know, there are still some people that are apprehensive to call him an ace for some reason.

Interestingly enough I looked at his stats between 2010-2012. The season where he seemed to turn it on more or less.

2008-2009

20 W-25L
4.61 ERA
0 CG


2010-2012:

40 W-21 L
2.93 ERA
6 Complete Games
558 Innings Pitched