I don't think anyone stops the Ali that survived the 11th and 15th round versus Frazier. Frazier hit Ali with the perfect left hook in the 15th and Ali got up immediately
I'm gonna say probably not. Louis was a blistering combination puncher with probably more speed and accuracy than anybody Ali had faced. That's one of the reasons I think Louis has a decent chance against Ali. Timing and placement of punches are every bit as important as raw power. Guys like Foreman and Shavers had more weight behind their shots but they did not string their punches together as well in the quantity and placement that Louis could.
Ali took more than a couple of flush shots from Frazier, Foreman, and Liston. So yeah, he'd get through it. Louis is the only guy I think would have stopped prime Holmes.