As this is turning into a popularity contest thread, I'm a Brooks B17 fan too. I wasn't too happy when the last one I bought seemed to be thinner leather, so I decided to try a Berthoud Aubisque (still a leather saddle). I still like the B17s better, since I managed to pound the rivet flat on an older saddle.

If Brooks was like Specialized, they'd come out with a foam fitting saddle you could sit on, and then analyze the shape with a computer to decide what Brooks saddle would fit you best. They might even have a "go buy something else" for people whose bottoms don't fit their (Brooks') tops.