May as well wade in now
Dunlop are owned by Goodyear so should not be much difference
Personally I use Goodyear and have never had a problem
In the last batch snow I drove up to Iain & Mel's place in High Wycombe, the only other vehicle to get there was a Landover with chains on!!
Steels or alloys if can get hold of a set of steels go it it, you can still slide around with M+S tyres on and if you use a kerb to stop better off f$%king a steel to an alloy.
Price depends on the size 1st, then maybe ask to me in person!?