Another vote for Vittoria Diamonte Pro's...I love mine! Prior to these, I was running Vittoria Rubino Pro Slicks (stock tires that came on my bike) and they were pretty awesome, too - as I logged over 5,000 miles on these tires without a single flat!

I tried Conti GP 4000S tires once, and got a sidewall flat on my front with only 30 miles on the tire...was NOT happy about tossing out an expensive brand new tire. That left a bad taste in my mouth, and for that reason...I will likely not roll on Conti tires ever again. JMO.