I don't know about you, but this is how I'm going to kick off the new year! LOTR: Conquest!
The first Star Wars: Battlefront is one of my all-time favorite games. Quick, fluid, dynamic action with lots of variation and using a classic setting. Conquest seeks to apply the same basic model to LOTR, and it looks like Pandemic has done a pretty good job. In fact, the game seems to have even more replayability than its predecessor. Considering I can still enjoy Star Wars: Battlefront after years, that's pretty impressive.
I'll probably pick it up on the 360 -- my primary gaming platform these days (PC being my other favorite). All modes are available single-player and multiplayer, offline and on. That includes split-screen and online co-op. The game includes both a good and an evil campaign.
I can't wait to play as a troll, ride an oliphant or warg, fire arrows down from Helm's Deep, launch a catapult, and wreak havoc with the Balrog!
Keep an eye on this one. It could be another classic. Pandemic's one of the more consistently good development studios.