LOL Patch'sD. That was one of my favorite's too, only I didn't know how to type it!
This was our first trip & I know I missed a lot of them, but I also liked "Six against one eh?" (Ok, so it's not original, but I fell in love with that alien!)
From the Horror Make-up Show: "I don't have to be nice to you kid, this isn't Disney." (Not even sure if that's scripted or an ad lib, but I found myself laughing hysterically during the whole show. )