I use an old rigid mtb for my 6-mile commute on fairly rough city roads.
Last fall I sensed my 15 year old Selle Italia Turbo was going mushy (felt it squishing up into the soft tissues) so I threw a new Brooks Swift onto the bike.
I like the width of the Brooks (I have wide sit bones, about 130 to 140mm, depending which assometer you believe) and I actually use it on my racing and touring road bikes with padded bibs.
On the commuter, the stiffness is nice for climbing the 59th st. bridge and surging through an intersection when necessary, but it is rather too hard when riding over bumps and crevices in the road (I don't wear padded shorts when commuting).
I was going to go back to a new Turbo.....I was always worried about the Brooks getting rain soaked, stolen, or ruined by constantly grabbing it to maneuver a 30 pound loaded bike in and out of buildings on a daily basis.
Does anyone else have these concerns for a new Brooks, or do you beat 'em up on a utility bike?