Halo Reach's story was awesome. Kind of took me by surprise just how much I cared about the characters at the end of the game, even though the setting is so short and all.
Great campaign. Not sure if I can say it was the best in the series, but a lot of things really impressed me. Especially the AI. Seriously that might be the smartest AI I have ever seen in a game to date. Sometimes they were just so overwhelming that I had to run out of the area and either fight them a new way or leave the area altogether. Playing Firefight by myself too, had an absolute blast, might be the best "Horde mode" like thing yet. I am going to be playing the shit out of this game for a very, very long time.
Also playing Sonic Adventure on the XBLA. Going to try and get all of the achievements if possible. The leaderboard stuff is great man, weekly leaderboards too? WTF, even most retail games do not have that.