So far over my 2 zeds i've had several sets of wheels tyres... here's my opinions on them...
Bridgestone RE040A's... Very loud for road noise, reasonable dry frip but not so good in the wet.
Bridgestone RE050's... better than the re040's in all respects.
Avon Z33's... Good name (for the car), and i was very impressed with the tyre. Reasonable levels of grip, but what i liked the most was that they broke away from grip in a very predictabe manner, making good fun 'frift' tyres...
Goodyear Eagle F1 Asymetrics... have these on my 19's currently and all i can say is 'Wow'. The car is basically glued to the road in the dry and wet - absolutely fantastic tyres.