For most situations I think the black face is better.
I don't believe you will find any quality PTZ camera manufacturer putting infrared LEDs behind a bubble dome, so night vision is actually much worse with a dome.
But also bubble domes somewhat limit your ability to look at or above the horizon.
SD65F230F is a bubble dome with no infrared LEDs. Although it has what is perhaps the best low light sensor Dahua uses. For the best night vision I suspect you would be better off with
Massive amounts of snow aren't a problem for either camera, dome or not. Though I will say my dad has one of the white-face PTZs (older 2MP, not starlight) high up on a radio tower and sometimes blowing snow manages to stick to the protective glass in front of the lens and block its vision for a little while. It is not very common.