I want to say what everyone else has mentioned about Brooks, they are great saddles but as others have said as well, you should try a few of them. I live in Portland and some shops here have a flat rate price where you can try multiple saddles to see what your butt likes best.
In regards to Brooks though, I tried the B17 and I couldn't handle it, but I was told to try other saddles they sold and I did. I now have a B66 and a B67. I have the B67 on my FS mtb aka my do it all spring/summer bike and the B66 is on my winter commuter.