1. It looks CLEAN While in my opinion one major reason Facebook ended up beating out Myspace was its wonderful interface, I feel like recent renditions have just lost that simplicity. I want connecting with my friends to be simple, not a bombardment of Farmville updates and a poorly designed messaging system.
2. Sparks Hopefully Google will succeed where Facebook has failed in actually making keeping track of your interests, well...interesting.
3. Circles Friend management in Facebook has always been one of my biggest complaints, Circles seems to be a legitimate approach to making organizing your friends a little bit more intuitive.
I am very excited to see Google+ roll out to the masses, and I do hope it is successful. Not because I want it to take Facebook down, but I think it wouldn't hurt to make them break a little sweat and think about their users a bit more.