My favorite saddle for the last 2 years is the Selle San Marco "Glamour." I have the SSM Glamour "Aspide" on my tandem. I can spend all day (and sometimes do) on those saddles and at the end of the day I'm still a happy camper.

Before that I had a Specialized BG WSD saddle. I put thousands of miles on that saddle with no problems at all. After the SSM saddles I went back; the BG is too cushy. Huh. Who knew?