I have two Brooks saddles: a B17 on my fixed gear Ice Bike; and, formerly, a Ti Swift on my summer fixed gear.
I took the Ti Swift off my summer bike, not for comfort issues, but weight issues.
Otherwise, I would describe my B17 as the most comfortable saddle I have ever ridden, although it took awhile to soften up; and, I grease and oil my Brooks more than most people do, but it works for me.
I have found when changing from one saddle to another, I need to experiment a little with the new saddle in terms of height and fore-aft position in order to find the "sweet spot."
Also, all my other saddles have a perineal groove, and when I first rode a Brooks it chafed my perineum.
Now I go back and forth between a grooved saddle and my Brooks without any discomfort.