I'm still keeping my fingers crossed for some half-decent (i.e. cold) weather in January or February; this appalling wet and mild rubbish is truly awful. If the mercury does take a plunge and I am lucky enough to be out in it, this is what I'll be wearing:
Aclima Merino base layer
Woolpower 400 sleeveless top
Bison Bushcraft woollen shirt
Empire Canvas Works Ventile Field Coat
Finnish Army woollen trousers
Norrona Polycotton Gaiters
Jornkangan boots
Woolpower 400 socks
For the head, there'll be a woolly hat of some description and on my hands there'll be a pair of Hestra Falt Guide gloves, possibly with Woolpower fingerless liners.
If I'm only having to deal with the cold, a bit of wind and only slight precipitation, I might ditch the Ventile and head out in a Rough Stuff Loden over-the-head thing, which is truly superb. If it's going to rain (more than likely!), then I'll include a Swedish Army-styled Goretex jacket and some Berghaus trousers of similar material.
The problem with the British winter is that you can be confronted with almost anything, weather-wise, which makes it next to impossible to choose what will keep you comfortable. Still, after all this sustained dismal wet, mild, splashy, muddy stuff, here's hoping for something with real bite that makes you want to grow a beard quickly!