fat skis only in LCC/BCCdon't forget they have the gate security check at Alta/Bird so if you have anything less than 90mm waist skis you'll be sent back - kind of like the tire-chain law :
(... wait for typical interweb overreaction). That's a joke btw!!!
Depending on the time you have check out one of the canyon areas for a day. If it's midweek it'll probably be uncrowded (unless it's a bomber pow day or vacation week). It's just a different feel. Either LCC or BCC is similar and a must see for a first timer. They get so much snow too ... it's something else. Not as much as N Vermont according to some but (another wisecrack - I'm here all week folks).