Replying to Help me plan my trip to Salt Lake City

I live England and have only ever skied in Europe. I have had a chat with my boss and I can get 4 week off in March so I plan on coming to Salt Lake city.

I've had a look and there looks to be a lot of good mountains reasonably close together and a lift pass is not too expensive (compared to elsewhere)

My plan in to fly into salt lake city, rent a camper van as it's cheaper than hotels or rooms off Air BnB and car.

My questions are, where should I definitely go? I ski 70% piste and off piste pretty well and 30% park, not very well.

Where can I leave a camper van? What are the laws like etc.or where are good caravan parks.

Anything else I should know?