I haven't actually looked at the South Park game at all because it's been YEARS since I've even thought about watching the show.
When I was really into the show, I remember buying the Chef quiz show game for the Dreamcast. It... wasn't very good but the Simultaneous Lovin' song is always hilarious.
I'm almost finished with the Ezio Trilogy of Assassin's Creed. Revelations is my favorite of the three but they've all been fun. Constantinople is one of those cities that's always fascinated the hell out of me (along with the entire Byzantine Empire but this game takes place AFTER that era) so it's a joy just running around the city and seeing the sites. Den Defense is awful but if you train up your Assassins and keep a low profile, you can pretty much avoid all but the tutorial. Otherwise, it pretty well refines everything from the first three games and adds a much more active world. Love the dust and smoke effects.
But I miss the horse.