actually I very much like the XMB UI concept, simple and intuitive, akin to Windows Media Center except in the orientation direction

Pros of Xbox 360 could be its better online system (when connected to screamyx), *cheaper*games, these two only..

the price of both consoles in the future will be the same, but if u look on the other way, Xbox 360 becomes more expensive compare to PS3 because of no built in Wifi, no bluetooth, no Bluray, hard to upgrade the HDD etc