I believe that everyone's road to recovery is personal to them, and that there are many different methods to choose from. I get highly suspect when someone insists that their chosen method is the only one that works, and anything else will doom someone to failure.
For ME personally, I do go to AA. But it's not just about the program, it's because I needed to start making new, sober connections in a face-to-face setting. I needed that support system and accountability. There are other sobriety groups out there, but AA is close to home and there are frequent meetings, so my AV really had no excuse to pull out of its butt in terms of not going.
Welcome Brick - definitely try a few meetings to see how it goes. And yes, I do think it'd be best to try a group that your father is not a member of. At least at this stage.