What I liked: Cartman dipping the sleeping Butters' hand in warm water and then peeing on him, Stan dealing with that older skier, the older skier's son about him just saying "Stan Darsh" over and over, that older girl the skier 'stole' from Stan, the ending with the kids complaining about how stupid skiing is, "You're gonna have a bad time!", the parents not being able to leave the timeshare presentation.
I did not like this episode a lot the first time I saw it, but I rewatched it and it was really funny. Lot of great moments and very few things I did not like (aside from Cartman giving Butters a so-called Hitler I loved everything). A+ episode