look on the bright side: there's always someone worse off than you. instead of partying or skiing, i have to drive 4 or 5 hours to where there is no snow (new york city), from where i live where we got a foot of fresh snow last night. a FOOT in one night, starting from zero. then i have to drive another 2 hours from there to big boulder tomorrow, ski one day, then drive 3 hours back. here's the catch: i'm injured, and all i'll be doing is filming, and they only got a couple inches over there (i think) [/rant] PS. i am actually super stoked to go on that trip, it's with my friends and i really don't have any reason to rant. but whatever, you're really lucky to have those 2 choices.
i'd say party, it sounds like an awesome time. mansion? hell yes. get some p00n and don't drink so much that you can't ski tomorrow. good luck bro