Hi matey, I'm a big fan of the distanzia (avon) Plenty of grip on the black stuff and OK on gravel tracks. No good at all on grass and wet mud, but hey, if you want to go scrambling.......
Getting 8.5k from a rear and I'm not too kind to them either :-) They are cheep too, I paid £90 for the pair delivered from M&P (think)