Most places that 'Normally' have the best microclimate are subject to wind direction, and as that is predominantly from a westerly direction. Torquay is protected from all directions except the East, and if the wind comes from that direction it has crossed 250 miles of English Channel. As the SW is milder anyway, it comes out near the top of 'Best Microclimates'
Chalk (Gravesend) has a good microclimate enabling hotter temperatures in summer/autumn, and the North Kent Coast holds the record for warmest UK recorded temperatures. but is exposed to NE winds in winter/spring, as these winds have travelled acoss about 80 miles of North Sea, then another 80 miles or so of Thames Estuary. the biting easterlies are somewhat modified, so not as mild as the SW, but not as cold as eastern england generally.
The western Isles Scillies, Hebredies, Wirrel etc, and western Ireland probably have the mildest winter temps, but when the Gulf Stream loses it's umph, like it seems to now, I presume caused by the current solar dimming phase, these places can lose their source of warmth from time to time, with cold air flows pushing out further west than normal. This Easerly flow cancels out the normal sea breezes, giving unusual still radiation frost conditions even on the coast. Irish Dave (David N) has commented on this being a bad winter for Galway. These winters bring out rarely seen temperature patterns like the -7 to -9C seen on the Cornish coasts last winter
We'll have to wait until March/April to see who the real winners/losers are in this type of winter