My favorite was and always will be my venerable Sony Trinitron 21" CRT. Even though I've since replaced it with a 22" IBM LCD, no modern monitor will ever match the CRT's colors and accuracy.
Not ever?
My favorite -- another vote for FW900. Probably my favorite (and most expensive) computer purchase ever. Amazing computer image quality and also the best HDTV picture I've seen. (Though I've never actually seen a Kuro in proper lighting conditions...)
Was reading a bit about the Sony OLED pro monitors. If I had an extra $6K laying around would love to have one. However, the burn-in issue does still look scary...