Wes & Garret seem like the obvious choice to be aligned with Aces & Eights, but I think the smarter choice would be to have Samoa Joe and Wes turn heel. They are trying to build Aces & Eights as a heavily destructive threat, D-Von/Gallows/Wes Briscoe/and Garret are not a destructive force. I want this to work for TNA but if these are the four guys they're going with it doesn't matter who the leader turns out to be, the depth of the stable is too weak to sell this angle. D-Von is past his prime and never was a top draw on his own, I don't see Gallows ever getting over the lower-mid card, and Wes & Garret are too green to pick up the slack. Although I've seen TNA (just like any other organization) make some really bad decisions, I just don't want to believe that these are the four names they came up with that would be a true threat to the company.
Samoa Joe turning heel and joining would be the best way to further this angle in my opinion. It gives the stable more credibility. They'd finally have a guy thats over with the TNA audience, and who works believable as a destructive force. It makes sense with the storyline too. Before Hogan got there we was a world champ and one of the faces of the organization, now he's been demoted to the mid-card. He'd have a personal reason to side with Aces & Eights. I'd still have Wes turn with him, he's a second generation guy with a good look so this would be a good way to get him familiar with the TV audience and make an impact without taking on the full responsibility of the angle.
~On a side note I don't see Garret Bischoff ever getting over with the audience or a locker room with the Bischoff name, usually being the son of a higher up in the biz helps but here I only think it backfires. I see his career going the way of David Flair minus the title reigns.