White / Yellow / Green / Red fonts on black backgrounds with animated gifs + glitter and broken plugins will be the response to the question "What comes to your mind when you think of Myspace UI experience?"
In comparison, the facebook experience was a lot more fresh, clean and unified.
It was downright embarrassing to have a profile page on MySpace. Unless you wanted to spend an entire weekend customizing your page, it was going to look like a banner ad factory had exploded on your profile. I'm a web professional -- I can't have that as my public image.
Not only did MySpace look like an amateur web site from 1998, it was completely confusing to operate. What checkbox do I click on which page to turn off the flashing purple?
MySpace just had an inferior product, plain and simple.