i like speedy feeling tires. On the commuter I ride Conti Gatorskins, 25mm, my 2nd set in a row now, very good flat protection and grip and ride. Very reasonable weight. In my experience they lasted as just as long as the t-serves, but ride far better with less flats. Have not tried the GP 4 seasons, and based on the feedback I might try them next.

Despite my love of the Gatorskins I have GP 4000's on my road bike currently and I don't care for them all that much. I may go back to Michelin Pro Race 3.