My stock seat that came on my Lager is comfortable. Personally I feel its over-rated, plus its ugly as all heck, even the black. It looks like a horses saddle on a bike. Seems like a college, hippy hipster fad for now.
I ride my fixed for excersice. I usually wake up at 5:15am and ride maybe 15, 20 miles 3 times a week. I dont see how a brooks will make that ride comfortable. I think people who like brooks just casual ride to the market or the bar, not true riding