Darth Nihilus, Darth Ravage, Darth Bane, Darth Maul, Darth Sidious (insidious?), Darth Revan (raven?), Darth Nox/Occlus/Imperious (latin in a galaxy far, far away and long, long ago?).
Revan is actually most likely derived from 'Revenant'. As in a ghost that comes back to haunt the living and derived from the latin revenans
1. Inquisitor: Palpatine and Maul.
Using Palpatine as an example of an Inquisitor in this fight is like using The God Emperor of Man as an example of a Space Marine or The Lich King as an example of what the Lich King's right hand would be like. It's preposterous, Palpatine is so far above the Sith Emperor let alone Nox that I can't believe you're serious.