If you could only pick one which would you pick? This would be very hard but I think I would pick Twitter but I am visual so love Facebook for all of the pictures but I do not like all of the silly quizzes.
i like facebook for keeping in touch with friends & family, more personal stuff, like seeing pics of each other's kids. however, i'm thinking that for connecting related to blogging that twitter is easier. although i haven't made the twitter leap yet.