I'm very surprised @ 360 > PS3, it's no secret that I'm a big PS3 fan but I have to admit I don't think the PS3 will ever match the 360 in NA, and maybe not even WW tbh, and for one reason, 'Live', I personally don't really care for it because I only really play on-line via PC but 'Live' as a service is the real king this generation, what with on-line play being such an integral part of gaming these days I don't see how Sony will ever be able to compete on the same level without a complete interface overhaul, head-sets packed in the box as standard would be a good start.
I like the XMB but purely from a business point of view I feel that it's a hurdle, time and time again I hear people saying that they don't feel ' socially connected' when they switch on their PS3, Sony need to address that, they need to start learning and evolving quicker on the software side if they are going to compete in the long term, in today's world of digital distribution and on-line gaming etc battles aren't just won by having great hardware and games, services and interfaces now play a key factor in winning over consumers, and MS have that in the bag atm.