I'm really excited about Gears of War right now. I've started replaying the series in anticipation for the Gears 3 beta coming on April 25. Remember when full game was suppose to release this month? Yeah, those were good times, until it was delayed until September.
What do I love about Gears? There's the characters and the story. I've read many an article about how there isn't much story or development in the games. I tend to disagree. From Marcus, to Dom, and the (so far) ill fated Carmines, I like hanging out with my COG buddies. And GoW 3 will have new characters like Clayton Carmine. (who better live- I bought a T-shirt for the Xbox avatar)
There's two playable Gears girls for the first time, Anya and Sam. (I'm still going to play as Dom) There's also the mystery surrounding Marcus' father and his message at the end of Gears 2. I feel like I know these people and I'm anxious to see how their story ends.
Besides that, I like that the games have parts that can be pretty annoying. *cough* Berserker *cough* or how about razor hail, the Wretches, the Tickers, or the Kyrll? Yeah, Gears is full of enemies and situations that can make you nuts. But I love it and I can't wait until September.