Originally Posted by rekmeyata

I actually liked the Kenda Konstrictor tires, I guess you didn't. Mine have lasted over 4,000 miles with only 1 flat and still rolling on them compared with the Conti Gaterskin and 4 Seasons where I got flats too many to count and they only lasted 3200 miles.

Sounds like from the tires you listed your looking for something more robust then normal street tires. The best one you mentioned would be the Schwalbe Marathon; the Vitts you didn't mention which Randonneur, they have 3 or 4 different Randonneur's! The Vittoria is the least toughest tire you mentioned of the three. The Panaracer does have another tire that is superior to the T-Serv called the Pasela Tour Guard (TG), this tire will last more miles then the T-Serv because the T-Serv has a softer rubber compound design to be gripper in cold wet conditions thus will last about 2,000 miles vs over 4,000 for the Pasela TG. The Schwalbe Marathon Plus tire you mentioned last is your toughest tire of the three and probably one of the two or maybe three toughest tires on the market, but that toughness comes with a severe weight penalty making them at least twice as heavy as any other three tires you mentioned.