I probably went through at least 10 saddles in the last 9 months. While some seats are more tolerable than others, I don't think I've found my Holy Grail yet. But surprisingly the one I am most fond of at the moment, is this $22 Ebay Chinese seat with carbon rails:
The curvature is such that I have to have the seat nosed up slightly, to avoid sliding forward all the time. Once that is done, this seat works very well. Best money I have spent on a seat.