For me, The Hobbit. Most well integrated movie theme ever in my opinion and one of the most intense multiballs - Battle of Five Armies. Love it. I tried it once when it first came out and thought it was OK. Watched more on-line streams and reviews as the code was updated and jumped in with some hesitation. Was so glad I did.
Big shout out to all of the pinball streaming going on. Really helps to get a feel for what you may like.
Other shout out is to all of the VPX table recreations. With the virtual pincab we built, we have been trying out tables before buying the real machine. Never would have thought I liked AC/DC so much. It has been great! Stern and JJP, this is the best advertising you can get to sell MORE machines! In my opinion it is not in direct competition with your main products. Just a way to expand sales of virtual and real with the same code set you already created. Both should be released simultaneously.