I can say that early myspace seemed a lot more fun to me because it was somewhat customizable. I recall being able to put html elements, banners, change colors, and make it somewhat unique to my own tastes. As far as I know, there isn't much like that these days, certainly not FB. I think that uniqueness value is missing from today's socials.
From what I remember, the clean, non-customizable interface was one of the main reasons FB surplanted MySpace for a lot of people.
One thing I learned from designing websites is that no one goes to your site for it's artistic design. If your site looks great then it won't hurt. But, if the design gets in the way of accessing the information they're there to find, people will hate it.
MySpace was a perfect example of this, from what I recall.
