All combatants of the Jedi are trained with basic knowledge of the first 6 forms, to my knowledge (correct me if I'm wrong).
This is compared to going up against someone like Grievous who's entire battle proficiency depends on fear and unpredictability
I'm not classifying the circumstances behind Grievous' victory over the team an example of his capabilities under normal terms and conditions.
Fine Sabers only.
Revan channels the absolute entire dark side and light side simultaneously, becomes his future self "The Father" and absolutely multiverse stomps Windu and Dooku and Maul simultaneously with only his augmented saber skills.
HoT and Bane watch with such awe and utter enlightenment that they become one with the force for the duration that Revan stomps the enemy team.