1) Kenda Kontender (700x 26c Wire on)
Awful. very grippy, but punctured so frequently that I was carrying two or three tubes with me on each ride.
2) Schwalbe Stelvio (700x25c Wire on)
These I really liked - they lasted about 1,500 miles, I think, before the back got a bad cut from some glass.
3) Continental Gatorskins (700x25c, Wire on)
Roll nicely at the recommended pressure, and pretty hardwearing. Downside for the set I had was the performance in the wet, which was awful - I had no confidence in them at all to keep me upright, and to this day, these are the only tyre I've managed to wheelspin.
4) Michelin Pro Race2 (700x25c, folding)
These are absolutely superb - road feel is fantastic, they roll beautifully, and they're hardwearing *enough*, given their other qualities. The 25c is nicely plush too.
5) Continental GP4000 (700x23c, folding)
My favourite tyre before I'd tried Pro Race. These are really nice, but riding pro race makes them feel, well, not quite "meh" but they're not in the same league (imo, ymmv, &c)