Ok, just google mapped it, it's 45 vs. 57 minutes. So it's a little longer to Snowbasin. Also, of course there won't be whole mountains untracked hardly anywhere, but at Snowbasin at least half of the nice, open faces they have there had plenty of opportunities for fresh lines. At Solitude the next day, the only places that had opportunities for fresh lines were off of Summit and in Honeycomb.
Also, I'm only recommending Snowbasin over Powder Mountain because I've never been to Powder Mountain. Everyone that has, though, has great things to say.