If you want great snowboarding and skiing - come to Salt Lake City.
You have 11 resorts within a short 45 minutes drive.
Four of the resorts near salt lake city:
All average 500" of snowfall per season
Brian Head averages about 350" per season
Then near Salt Lake City you also have Park City which has three more resorts:
Park City Mountain Resort
Deer Valley (Ski Only)
Park City averages 350" of snow per season as well. Park City is known for it's Ski Town with tons of restaurants, main street, bars and very nice other amenities right at the bottom of the mountain.
As you can see you're more likely to see snow near Salt Lake City in northern utah.
All will have mainly real snow. I have never been to brian head but it's a lot different. SLC has big jagged steep mountains shooting way up into the sky. Brian Head is in the middle of the desert, with red rocks and more mellow terrain - typical desert mountain area.
Anywhere in Utah get's a lot of snow compared to most places. February/March is when Utah gets the most snow.
Ski resorts near SLC will have so much diversity, you can find everything and anything you want there. Brian Head is kind of in the middle of nowhere.
Here is a map of the area with ski resorts: http://i.imgur.com/Tnx8w.jpg
Here is a weather site so you know what to expect closer to your trip: www.Wasatch Snow Forecast.com
Here is a great site for Ski info in Utah: www.SkiUtah.com
Let me know if you have any more questions.