My two favorite saddles are my two Brooks Team Pro "S". I wouldn't care if they were pink with white daises on 'em. Unlike the B67 the "S" models of the Pro and B-17 are shorter AND wider. With beefy thighs I like the narrow Pro nose but also need the B17 like width at the back.

My wife has several B67s and one B67'S". The "S" is perfect for the tandem, where the rear cockpit is a bit short for a chubby girl when dismounting.

But the standard model B67 has a slight advantage as the tilt doesn't change as much as the springs compress. The more upright you ride, the less important I imagine this is.