But for a loner he has always gravitated to the team role.
He has one of the largest famlilies of supporting super hero characters who he works with.
Keeps replacing Robin.
He has been a mainstay of the JLA for years.
Formed the Outsiders.
And even in the future "Dark Knight" universe he leads the mutants et al!
I'd say in his head he is a loner,but in his heart he is a team player!