i went to sass when it was still sass at las lenas. it was a fuck ton of fun, lots of good shredding, good people, and good partying. It has changed locations but I have had some friends that have done barlioche and it sounds just as cool, more pow and less "big mountain" style skiing. Either place you get a bit of park too. I'm pretty sure heim and garrett are still involved which is also rad. it has changed owners since i was there which im not sure was a great thing for a while but that might have gotten solved by now.
my homie brady is a coach down down at evlov chile and he cant speak highly enough about it. sounds like you get really good culture, a sick crew to kick it with and pretty good shred.
watch some videos of each camp and see what you want out of terrain - it all really depends on the season they are having down there honestly. but you'll have a fucking nuts experience either way.
post skiing activity for me was basically swimming in big heated pools, spanish lessons, footy review, kickin it with babes we met at the bar, beating the locals at pool, and drinkin fine cheap argentine beers. discoteques and huge meat roasts were also common.
good times, def tryna go back.