I am in the process of building a HTPC for under the TV. Anyone out there use either of these? I've heard good things about XBMC but what does it offer that WMC doesn't? Also, a girl needs to be able to use it as well, which is the most user/girl friendly?
nothing, WMC is brilliant when combine with mediabrowser. I use this combination to stream all my blurays etc to my 360.
Theres also a TVCatchup plugin for WMC which is quiet nice to use.