Currently running Conti GP 4 Seasons. My favorite combination of traction, road feel and puncture resistance at the moment. However, they're not long lived, nor cheap and you can still cut the sidewalls.
Previous ran some Michelin Pro Optimums. Which I liked very much, but, they were simply too fragile in the sidewalls for me.
Maxxis Refuses I literally wore through the tread and into the casing without a single flat on a couple of tires. They have excellent grip but are short lived, heavy and slow rolling.
I haven't run anything bigger than 28mm, so can't comment on some of the 30-32mm possibilites. But, I would love to try some Challenge Parigi Roubaixs or the Compass Extra Legeres on my 80s Eddy Merckx.
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Birth Certificate, Passport, Marriage License Driver's License and Residency Permit all say I'm a Fred. I guess there's no denying it.