Disgaea - It's mostly because of the characters and how much fun it is. I've always been a fan of the SRPG and since that's what Disgaea is (minus 2-3 side games).

Elder Scrolls - There's something about a really detailed world that literally let's you go where ever you want, whenever you want and in the first person. I'm really really excited for Skyrim.

Final Fantasy - Used to be on top, but with all the releases that are simply to bank on the final fantasy name (Chocobo Tales? WTF?) they fell from my graces. And then XIII really pissed me off because I couldn't control all of the characters.