Had the Metz & now on Avons which are better in the dry but more skittish than the Metz in the wet. Get the tyre that suits you & you feel comfortable with, after that its just a money thing, sod the milage, feeling good on the ride is worth the extra. I don't believe these days that there is a lot of difference between them, but there is an awful lot of difference in peoples perspective & opinion, I have had a couple of slides on the Avon but who's to say that it wouldn't have happened with the Metz. it's all to do with the rider & conditions, rarely will a modern tyre let you down if you ride accordingly, learning the limitations of yourself is more important than limitations of the machine, if you lose it, it's likely your fault. Sorry if that offends anyone but it's the truth.