Telluride is indeed one of the more beautiful ski mountains and towns in the Rockies.
Breck is kind of suburban in feel in my opinion. Steamboat is nice, pretty and closer to Utah but iffy that time of year due to lowier altitude. Although they have had a record year in snowfall so if it looks cold, could be a great option.
Since you will be driving, can you postpone the final decision until closer to departure and check the weather?
Utah has wonderful national parks, but good grief so does Montana and Wyoming... Yellowstone? Grand Teton? And Colorado Rocky Miuntain National Park and tons and tons of National Forests.
Still OP is committed to Utah so why not just stay there? The money and time saved in less travel could pay for nicer accommodations up canyon. Solitude has very competitive ski on and out lodging.