hold the boat, or plane, or whatever you are taking. Your mom is just going to chill, and you want to ride a good mountain on the 1st. Here is a short list.
1.Jackson Hole- because it is the best mountain in the states, and your mom will love it too.
2. Big Sky- another amazing mtn, less for your mom but still decent.
3.Telluride- tons of snow already and your mom will love it too.
5.what has been said about utah, don't skip powder mountain if you go.
Where to avoid, unless your mom wants to be puked on and you want to spend your first 4 days of riding a real mountain in a lift line.
1. All of summit county and Vail.
2. Park City- normally awesome, but not the week you are going.
3.Brighton is awesome for a purist, but your mom is going to be bored off her arse there.
I have been to every resort on your list during or near the time you are going. They are all awesome, but I would choose a charming mountain town with little to no lift lines so I can actually ride. central colorado is going to be packed. Hence my list. If I was from Ohio, I would definitely want to go to a mountain that would impress me for a lifetime. Jackson, Big Sky, and Telluride will do that.