Haven't tested Conti, but have tested P6000 (195/55) on my previous car (Fiat Barchetta). They were good on dry conditions, but close to horrible in the wet, both when it came to grip and aquaplaning. Can't recommend those... I'm going for Bridgestone Potenza S-03 this time, supposed to be the ultimate tyre, both in dry and wet conditions... Expensive, but nothing is too good for my baby (the 147 that is, not the corolla...)
Hope that helps you a little in deciding!