Thanaton wank

It is in the Dark Council chambers on Korriban that the Sith inquisitor finally corners and utterly destroys the once supreme Sith while the Dark Council bears witness.
- Star Wars: The Old Republic Encyclopedia

But the inquisitor nearly loses everything after being caught in a trap devised by Darth Thanaton, a supremely powerful Sith and harsh traditionalist who bristles at the idea of a former slave rising to sudden influence.
- Star Wars: The Old Republic Encyclopedia

Nox >> Thanaton > Baras >>> Fulminiss?

It's complicated.

Not sure where you get Thanaton > Baras from.

It's the "supremely powerful" Sith crap, which is obvious hyperbole.

All those accolades containing 'teh strongest Sith of all' are hyperboles.