MySpace is arguably worse now than it ever was. The default profile looks much better, but that's about it. There are still obnoxious ads everywhere. They've tried to copy, poorly, a bunch of facebook features like the news feed, but it's crammed full of commercial spam. The profile management tools are clunky and annoying. Even their logo is now horrible.
But the issue wasn't that MySpace was an 'eyesore' or that Facebook was 'clean', except to the extent that MySpace was full of distracting ads. Facebook is full of stupid crap, too. Facebook made the better choice to focus on innovating community features, which was its strength, where MySpace failed to innovate along its own strengths. Maybe was poorly designed or poorly managed, or maybe they simply panicked and tried to be facebook but clearly not as effectively. I don't know. But now it's a mess.
Facebook was and is a better tool for interacting with your social network than MySpace, and continues to innovate in that space. MySpace was, at one time, better than facebook at self-expression, media sharing, and making connections with semi-random strangers. Now, I'm not sure it's really good at anything particularly interesting.