Battle meditation does little here; it boosts morale and focus, and disrupts them within the opponent; but first and foremost it ties the combatants together as a unit, connects them, improves their coordination. Bastila won't affect Yoda negatively too much, so it leaves Revan with minor amp.
Within sabers - Yoda, 7/10 at the very least. He's on a superior tier as a duelist, even though Revan is just that level below. He gives him a good fight no doubt.
Force - normally I would claim it to be a tie, or small majority for Yoda (like 65/100 at best). With this amp, I think Revan takes a micro advantage.
All out - saber advantage of Yoda is higher than Revan's Force edge. Yoda for a small majority.