So it does make a difference. I was prepared for people to say that it wouldn't make much difference because it's unlikely to be used in the middle of a duel and could end up hurting Moudama as well.
If Moudama's smart enough and stays back, then a hall-collapsing, several-dozen-droid-destroying, Grievous-pausing wave should honestly do the trick. Also, I wouldn't neccessarily rule out the two in a duel either. Both are noted as some of the most skilled Jedi in the Order at the time, and have contended with one or two MagnaGuards(at times, while focusing primarily on the Chancellor), which were Grievous' Elites.
Sure, but both of team 2 are proficient at Healing powers and can use them mid-duel, and Atris also has the benefit of being able to use Drain Life and Storm as well. Force Bellow can be game-changing but I doubt it's an instant win.
The two sides are probably about equal as swordsmen, to be honest.
Roron's lightsaber being considered by Grievous as one of his top four trophies is a pretty good accolade, unless it refers to the lightsaber's bling. That puts him in league with RotS Shaak, Adi Gallia, and Pablo Jill, and actually above Foul Moudama, Nahdar Vebb, and so on. I'd say that rivals Atris.
Foul's just under that, so I'd put him on par with Vrook in saber combat.