Being a myspace member recently, I can say that you won't realize how intuitive it is until you actually join and become a member. The interface is easy, and if you have html skills, you can create pretty webpages, and format the page to how you want it to look using CSS. So, the way the pages look are completely up to the skill level of the member. I am sure everyone here can have awesome looking myspace profiles.
Communication is easy. That is what makes myspace attractive in my opinion. There are many different ways of communicating within the site, not just one. There are bulletins, instant messages, pm's, notifcations when friends add you, comments, a message board. It is also a brilliant way to advertise. If you have 500 friends, you can advertise to each and every one of them using the "bulletin" feature. For example, when I finish writing a piece of music, I can instantly advertise to everyone who is on my friends list to come and listen to my piece.
Furthermore, the more friends you have, the higher the probability your profile will be found. It's a really great way to advertise not only yourself, but other things as well.
And one final obvious thing that makes myspace attractive is the fact that it has countless active members. Myspace doesn't even really have to be that attractive visually, since it seems to be the monopoly of social networking.