I vote Gangsta
I vote him because he has a good balance between fun and authority. Groinbyrd, you are a little too serious at times. Nagato, I do not want an 11 years old running this clan.

Also, gangsta is a long lived dedicated member in this clan that obviously has a lot of experience dealing with these kinds of issues.

Finally, it already feels like Gangsta is a leader because of the way he carries himself.