no ice build up on me, but yes on my handle bars and bike overall.
I'm always overly warm, and sweat like a pig during summer, fall, spring times.
So winter time is pretty damn right temperature for me.
Is like having the air-con on all the time

snow in my head/helmet melts away, same for the face mask
places i do get snow/ice accumulation is on my stereo headset.
and edges of the goggle, i keep wiping it off with my gloves, when there are too much.
LOL it'll be nice if they sell goggle with little wipers build in

i keep a can of WD40 with me, to keep the brakes lubed, and to prevent snow from sticking up to it.
the bike gets real stiff below Zero Celsius.