My C70 HPT coupe has about 93K miles on it and i have been through quite a few sets. I am currently running Goodyear Eagle F1 DS G3's and have been relatively happy with them. A little cheaper than my previous tires (Bridgestone Pole Position SO 3's, Michelin Pilot Sport MXX3's, and Pirelli P-Zero's), and they ride a little softer with a little less grip. I like the Bridgestone's the best but they were pricey and wore quickly... Depends on what you want out of your tire though: grip, durability, wet traction, snow traction, comfort, etc. It's hard to specify a tire without knowing what order your preferences run, but the Bridgestones were the best in my book with the Goodyear's being close behind when value is taken into account. Hope it helps.
-Bret