Dubulous
I look just like Buddy Holly.
If you haven't heard of Dan Haren chances are you aren't a baseball fan.Let's see here on another note the best pitcher in the MLB is not Roy Halladay it's Dan Haren. Look him up, chances are you've never heard of him because of what team he's on......
There are several good pitchers in the MLB; I don't think that someone can just say "Oh, Player X is the best because he has a really low ERA" or "Player Y is the best because he gets a lot of strikeouts!" The fact of the matter is, the best pitcher in the league is purely subjective in today's game, due to the length of the schedule and the multitude of teams. For instance, last year the "best pitcher in the American League was clearly Cliff Lee." (quotes to indicate sarcasm) Now? He's out of the picture completely.
The beginning of the season? It was Zach Greinke. Oh but then it was Josh Beckett. But Tim Lincecum dominates a start; suddenly he is the best pitcher in the game. Dan Haren is the best because he has a low ERA. But wait Mark Beurhle just threw a perfect game!!!!!!! He is the best pitcher in the league by far!!!!!!
Sorry to rant like that, I don't intend to sound rude if I did. My point is simply that the best pitcher in the league is a purely subjective topic. Anyone can catch fire and make his case for the best pitcher in the league.