If they follow the book there will be next to no action in the Battle of Five Armies since Bilbo just gets knocked out if I remember correctly. Hopefully they won't focus on him being knocked out but you never know.
I highly doubt that they will leave
the main battle of the tale as a side note of the movie. I really hope they don't.
Despite all the things that weren't in the books I enjoyed "An unexpected journey" pretty much and I am also looking forward to the next films, although I found that Smaug looked pretty poorly animated (in the trailer) in comparison to the Fellbeasts of the LotR trilogy.
Back to the topic: I am huge LotR fan, have read all books (except the "Unfinished Tales"
), played almost all games and well look at my name and you'll see my favourite race in Arda. I just love the dwarves, their humour, their badassness, their sturdiness and their axes and armors. Following would be Elves as they so asthaetic and the complete opposite of the Dwarves, the Istari (like someone mentioned already, Gandalf is a badass motherfucker
) and the Dunedain, cause they got Numenorian blood in their venes. The Men of Gondor and the Rohirrim are cool aswell, but they are so weak in comparison to other races, so easily trickable, so gullible.
As you might already have noticed, I am totally into the good guys of Middleearth. Thats mostly because the "evil" races are just either just bad copies of the good (e.g. the Orcs) or betrayed the good guys (e.g. Rhun, check out the Simarillon). Of course the Trolls and Mumakil are very fascinating and bad ass aswell, but they are on the wrong side