Recommending a saddle is tricky business but… I have tried pretty much every saddle Brooks has on offer and found following: C17 is way better in the carved version, the standard one was way too rigid. B17 are great if you can find a slightly used one ( as Joe says, let someone else do the initial breaking in), feed it with Proofide or similar ( I tend to use Gliptone conditioner which I buy for my old Volvo’s seats) on both sides, ride for about 100miles, tension if necessary. Champion Special with bigger copper rivets are better as the leather has a tendency to split around smaller rivets on standard versions. B17 Ladies, and the aforementioned Conquest are probably my favourites, but as with any saddle a lot depends on the riding position/geometry. And your anatomy of course…
For reference, my all time favourite saddles are Rolls Titanio for more upright bikes, and the good old Flite for racier ones. I also have a couple of titanium railed Gilles Berthoud saddles and really rate them.