Haven't tried the Avon, the Yokohamas worked fine, I didn't like the Dunlop; was fine in hot weather once warmed up but hopeless in the cold (difficult to get any heat into it) and deadly in proper cold.
Current back tyre is a Michelin Cross Climate which has been excellent in the cold, the wet and in the heat, including on the Autobahn at 35 degrees and hill climbing at Caramulo. Have also had a couple of Nokian Weatherproofs; they worked well, possibly not quite as good as the Michelin in high temperatures, good in the cold and wet but didn't seem to last as long as the Michelin.
