Assassins Creed: Brotherhood
Well I was going to finish Alpha Protocol first, but couldn't resist since I LOVED Assassins Creed 2
I've already put 16 hours into it, maybe more and I've only done 20% of the game apparently, and I've had just one match online, it's great but I found it hard to stun your pursuer, but meh.
The game feels like Assassins Creed 2.5, which it basically is, but with tons of refinements and improvements, I mean, the battlesystem has been tweaked a little more, and it's now even more freeflow than before, I can kill 8 guards in one big continuous movement as opposed to having to stop and counter midway through, it feels so smooth and great. I also love the inclusion of the Crossbow and the Poison Darts, they're tops, and wow at the Assassins Guild, I thought it'd be a little boring from what I'd read before, but sending them off on missions to level them up, and calling all 12 Assassins to you at once to take out a hoard of guards, it's hilarious, especially when they just leap out of hay bales or throw a smokebomb, and when the smoke has cleared, the enemy is dead and the Assassin is nowhere to be seen, it's really great, although it makes you a tad overpowered, but you can't abuse it since it has a cooldown, but meh, it's still amazing.
tl;dr this game is pretty amazing.