Depends if you want to play a game as if you are actually part of South Park episode, it is awesome. Do not let the older titles put you off. Not played goat simulator. Titanfall is pretty fun. Like cod with mechs best way to describe it.

South Park is pretty funny but there's really nothing special in the gameplay (it's polished though). I mean, i know people will disagree, but in my opinion you might as well watch playthroughs on YouTube. No one is buying the game for the combat. It's for the humour. It's because it's South Park. Goat Simulator is great fun apparently, but there are some people saying it isn't worth the $10 because of the small amount of content. In my opinion it's not worth it, even though i loved the game to death the moment i saw the alpha footage (before they even decided to turn it into a game). Since there will be a lot of mod support from the community it's something that you will want to buy eventually though. You could wait until it becomes cheaper if you want. Then there's Titanfall... Uh... If it was me i wouldn't get it because i'm seriously sick of mutliplayer FPS. Really depends on what you're into. For what it is, it's a good game i guess. So if i had to decide, i'd say Goat Simulator.