Latin American Skiing

Having missed most of this year's winter, I'm curious about skiing in Latin America. I looked some stuff up online and it looks like the biggest slopes are in Chile and Argentina. Major resorts that keep coming up in my searches are Las Leñas, La Hoya, El Colorado, Valle Nevado, and Antillaca. Some of the slopes are at higher elevations than average north american resorts. The low season is June, September, and October; the mid season is early July and August, while high season is usually the second half of July. I'd love to hear if anybody's done much skiing in the southern hemisphere and how it compares.