To me, this argument has valid answers in both camps. Winning aids recruiting, but recruits also want to play in big games. We currently offer recruits the opportunity to play uga, Clemson, FSU, ND, and Miami, yet since we weren't winning routinely, they weren't buying in as well as we'd have liked. So in and of itself, big games against tough opponents isn't going to move the needle. If we were to schedule 3 cupcakes to go with uga on non-ND years, that would also likely hamper recruiting. IMO, you need a bit of both. Since we will (probably) always have uga, then on non-ND years schedule a P5, G5, and an FCS team. On ND years schedule a G5 and an FCS team.
Now the question becomes which P5 team? Vary it. Bring Vandy back again. Get Auburn in the building again. I'd love a rematch with Tennessee. Shoot for a home and home with Oregon, Purdue, or Iowa St.