i can tell you about chiel cause i live here... if you want to ski pow portillo, chillan and also the three resorts near santiago ( el colorado, valle nevado and la parva) are very good... if you come to santiago specially el colorado and want to ski and party just let me know and i can help you with anything and let you know of the good spots... and for park the best one is in el colorado comparing to the ones in la parva and valle nevado, portillo and chillan don't have one.