Sorry Andy missed the RF requirement. The poor feedback on the tyre sites and lack of a recommendation from ADAC put me off them. Some RFs here, pricey mind...

Vred Wintrac Xtreme £160 - I've heard other Brits recommend these, but no other RFs on here!!
http://www.camskill.co.uk/products.p...m11b423s2801p0

Other than that the RF factor leads you to those three you mentioned, if I had a gun to my head I'd go for Pirellis but make sure they have the M+S marking and ideally the Moutain and Snowflake symbol.

You'd be better of with a nice set of 16s (195/55 R16) as there is a much bigger (and cheaper) choice of RFs - the ones I have only cost £118