Audiogon's most knowledgeable PC Audio gurus?

I find it hard to know whose opinion to trust in this area as the opinions are so diverse. Who really knows their stuff? Your nominations please (without allowing it to get ugly)
You may be laughing at the thought of Pettyofficer as a computer audio guru, BUT he has just returned from Apple training. Oh yes. Now he is all knowing.

In the end he became a high definition downloadable format.