Xbox Live Gamercard API

I was wondering if anyone has used any of the xbox gamercard plugins or integrated the api into a WP site.

I’ve seen a couple plugins floating around.

Can anyone answer these questions…

which one is the best to use?
Do any of them support letting people relate their gamercard to their account on my site? If so, how does that work? If not, is it possible to make that happen

I haven’t looked into this a lot yet, I was hoping to get some input first.

Thanks!