Personally I believe Nox has the greatest personal strength and power growth potential because of the forcewalking ritual. If BioWare doesn’t overlook the very clear choice for the next ghost Nox will have the option to bind(the emperor himself when we finally kill his original body) or choose to find some stupid reason why the most powerful forcewalker of all time is incapable of binding the emperor’s ghost. Personally that is my biggest problem with the Inquisitor story they go to such great lengths to make your body and mind capable of withstanding the power and voices and then you never get to freely bind ghosts to you to augment your power. There should have been a base power increase for each ghost you find and absorb as a passive maybe and the ability to go up to any ghost you find and bind it to increase your power. Binding the emperor I get that that would be a bit much but at the same time there is no other class and no other sith that could pull that off ...a permanent end to the emperor by binding him to your will and using his power to augment your own making you strong enough to replace Acina/Vowrawn as Emperor/Empress of the Sith Empire. Marr is probably the strongest in terms of power base Jadus is overhyped “second in power only to the emperor “ or however that quote goes is something that applies to any dark council member it’s a statement of how much political power he has not personal strength as for his political power I can see him being quite strong due to all the secrets he must know being the head of intelligence. Outside of that I think that he’s really not all that impressive.