In reply to Blondie_Megan94:
Well, situation isn't good at Cairngorm due to ongoing uplift problem, Aonach Mor closes every year in December (crazy I know) for maintenance so may or may not be open (although I could be wrong on that) but if open is subject to closure due to wind, Glencoe not really that good for beginner (in my opinion), Glenshee is better -and Ive never been to the Lecht (well, have cycled to it in summer but havent ski'ed or boarded there).
In order then Glenshee, Aonach Mor, Lecht and then Glencoe - I would discount Cairngorm at present.
Scottish days are typical of Scotland - the good are great, but few and far between
If def coming its better to be flexible if you can and go where the weather is - good luck.