I hear very good reports on the Avon ZX7 as a reasonable balance of quality and cost. If money no object i would go for Michelin Cross Climate but they are pretty expensive, fine if we get a terrible winter as they are said to be excellent.They certainly worked a treat on my last car, a C Class estate, transformed it in poor conditions. I was lucky and sourced a brand new set of 18" Wheels and tyres from a brand new RX200T, the owner wanted 20" for some reason. They were fitted with Dunlop SportMaxx and they are a definite improvement on the Bridgestone Duellers that were OEM on my car.
Nexen are certainly around, they're not as bad as some of the Chinese 'ditchfinders' I have read reports about.
Sorry not to give you a definitive reply.
PS, is this your first SUV, it is 2.2 tonnes and they certainly don't stop as fast as conventional saloons or estates?
Sorry to read your story