I'll go on the record here and say that of all the new things we've heard about over the past week, and there's been a LOT, this is by far the best thing for me. But we can only speculate whether it will include all-time stats, how in-depth they will be, and whether there will be a leaderboard to compare globally or with friends.
I would like to hear from you guys, ideally, what kind of stats tracking do you feel are absolutely necessary? I personally love the idea, I pad the crap out of my Battlefield and CoD stats. I want to see every number that they can possibly give me.