Hello, I'm curious to get several opinions about social networking scripts.

I've done several searches and found information about

phpFox, E-freinds, and handshakes. A lot of these scripts have very similar features which are great. Blogs, Location, Gallery, Profile features, User groups. I'm curious about which do you think is least resource intensive, easiest to use in your opinion. Any other experience would be very useful!

Thanks for your thoughts.