Just watched the Hobbit Trilogy at the theater. I'll say that the Battle of Five Armies was awesome. Lots of feels at the end there. I missed the second film in the theaters the first time and I bought it when it came out, but never watched it. That one was great too. IMAX for the films are a good choice. Can't beat the picture or sound.
I hope they do all six in the theaters one day. I'll be there!