I still can't afford an O2, one day though, one day
I can't complain, my current 'stat collection is plenty awesome for my needs and is still the best I've heard to date. I now have what I consider four of the best phones on the planet. I haven't heard the O2 yest so I'm lucky to not miss them.
Having listened to some of the best regarded dynamics I can safely say I think my 'stats are way better than any of them.