Is Mark Buerhle the best White Sox pitcher of all time with his no hitter, perfect game, and playoff and world series victories?  He certainly should be in consideration.

Also can anyone give me a good description of why Buerhle is so good?  He does not have overpowering stuff.  I would think that batters would eventually figure him out, but that does not happen.  

No matter what, Buerhle is one of the most underrated pitchers in the major leagues.  The White Sox and us fans are so blessed to have this man pitch for us for so many years.  He is a great player and a great individual.  You won't find many people like Mark whose composure is never affected despite how intense the situation is.  On top of that he is an outstanding pitchers.  Many athletes with more talent would falter under high pressure situations.  Mark never does.  He occasionally has a bad outing, but whenever there is a lot on the line, he comes through.