I'm building a myspace-like site for users and was wondering which method I should go with. I'm familiar with the SEO and technical aspects of a subdomain as opposed to a subdirectory setup. I'm basically wondering if users find username.mydomain.com/ for their profile page more attractive than mydomain.com/username. This would be a paysite, so I am trying to think of what's most attractive for users.
Any thoughts on this? If you want to remind me of the SEO/technical differences too, I'm all ears. :)