Mine's gotta be halo or gears.. What's yours?
If we're talking exclusives, Halo for sure. The only one I have not enjoyed so far has been Reach. I even liked Halo Wars despite all of the criticism it received.
Gears of War 3 and Borderlands (not technically a series yet, but the 2nd one is coming out this year). I played the shit out of the Gears Of War trilogy. I love the storyline, and I really hope they release another game in the series. The fact that the Locust may be former humans, and the Locust queen may be Marcus's mom is KILLING ME! I NEED to know what the truth is!
As for Borderlands, the first was my favorite game on the xbox so far, and may be my favorite game of all time (so far). I am excited for the sequel which will officially make it a series.
I've never actually played Borderlands.. is it a pretty long game?
Oh yes, I got more hours out of that game then I did Skyrim. After playing through the campaign once, you get the option of playing New Game + which usually takes double the time of the first playthrough (but it actually gains more fun factor!), and you will most likely want to play through on different classes which will add even more time. Then you can get into the multiplayer (the multiplayer is the most enjoyable aspect of the game by far) which will add LOADS of more time overall. Plus all 4 of the DLC packs are very fleshed out, and entertaining bonus campaigns.
I might just pick it up when the second one comes out. I've heard so many good things about it, and its probably pretty cheap by now new or used.
If we're talking exclusives, Halo for sure. The only one I have not enjoyed so far has been Reach. I even liked Halo Wars despite all of the criticism it received.

