The Black Diamond Mercury Mittens for women will keep your hands warm at the resort. Like most mittens, they do not allow for great dexterity, even with the split-finger liner. The liner tends to pack out after a season or two, and then are not as cozy; this may be mitigated by washing the liners from time to time.
The Hestra Heli Mitten for women is a top choice for most activities in cold and dry weather. The weather-resistant material, durable leather, comfortable inside, and breathable nature allow this to excel in cold climates, but the lack of dexterity and waterproofing make this sub-par for ski mountaineering and wet climates.