Replying to Ski trip

so me and a couple of friends are thinking about going on a ski trip next year before we graduate high school... we have 2 things in mind, because two of us are avid park skiers we were thinking about possibly going to COC for a session to further improve on our park skills, where as the third participant had thrown in the idea of a powder type trip... what do you think would be better? another thing to consider is we live in the east and ski park all the time as other terrain is just too simple... and we rarely ski fresh pow. +k for helpful reply's :)