Fisto outpaced and blitzed Grievous's personal magnaguards, and while their reaction speed may have been exaggerated, they are still built with speed to match jedi, and that's just the average magnaguard, let alone Grievous' personal body guards. Fisto has also moved so fast that his speed surprised Obi Wan, who has by that time witnessed the speed of Maul, who is one of the fastest and most skilled fighters in the mythos barring the top dogs.
The fact that Ventress matched him and pierced his guard, is more impressive than what you've listed for Revan.
Perhaps Revan could fight them off simultaneously, but that burden of proof is not on me. I can also go into detail about Kenobi and Skywalkers feats, but I'm not at a lap top and don't feel like writing it all out. I'm also missing some of Fisto's feats. But I assure you, you'd need more than that to assume Revan can give them both a challenge.
If you're hard pressed to prove Revan's superiority over Ventress on feats alone. What hope is there that he'd stand a chance against Dooku?
Open a thread, and I'll happily get to it when I can.