i kinda disagree. facebook is simplified enough to get content across quickly, but different enough to be noticed as "facebook". there's definitely some UI problems, but i think overall, facebook wins. myspace looks like they went through microsoft's brand guidelines and lifted a few things, and tried to jam everything on one page. looks web 2.0 now, but in the future it'll be outdated. but i'll give it to myspace for going for the vertical scrolling route to help the boom of tablets... and i could change my opinion once i get to click around on the new myspace
theres so much negative connotations with the name "myspace", i think they should just rename and start again. they've tried so hard to relaunch so many times, i don't think it's worth it.