I use grey gloves (I think they are German AF surplus), I find the thin white RAF ones a bit too thin for comfort in a cold cockpit.
In an open cockpit I use thick windproof gloves designed for moped racing that came from my local bike shop - in winter supplemented by silk inners. Very warm, but just thin enough in the fingers to operate the radio. Don't really look the part admittedly, but I'd rather have warm hands. Full motorbike gloves are a bit too silly looking, and too thick to operate the radio (and I don't feel the need for Kevlar Knuckles when flying!).
G