I wouldn't have thought that Ian Holm looked like Martin Freeman, but it works.
Thorin looks totally like a Klingon, minus the forehead ridge.
In general, I like the diversity of the dwarves. Some are Scottish and some are Irish and some are German and at least one (Dwalin) looks like a berserker from Warhammer FRPG.
Is it just me, or does Kili look a LOT like Merry when he smiles? I know one is Aidan Turner and the other is Dominic Monaghan, but they both have that impish devil-may-care grin thing going.
Also, the Great Goblin really REALLY looked like Tim Mitchell in the face. I was surprised to discover it wasn't him doing the voice.
I like how the movie took most of the songs and made them less goofy. Far Over the Misty Mountains Cold is positively haunting now. I dig the all-male sound -- it sounds like monks chanting, only much cooler.
Anyone else think the Troll scene was overwrought and lasted far too long? Also, the stone giant scene was completely unnecessary.
I like the inclusion of Azog the Defiler. I imagine he's going to show up again leading the Orc army at the end of the last movie (whoops, spoilers for a 60 year-old book!). I approve of the way Jackson and del Toro are making an effort to lay the groundwork for Lord of the Rings and make this an actual prequel and not just "this story came first, because Bilbo and Gollum and magic ring."
I understand that Benedict Cumberbatch has been cast as the voice of Smaug in the next movie. Fans of BBC's Sherlock will understand just how special this will make the Bilbo-Smaug interaction.