Nah. Revan has him beat in the force. After being drugged and out of practice for over a year he manages to easily absorb and release Nyriss's lightning.
Then, in TOR, after mentally battling the Emperor, being drained, and out of practice for 300 years he rips asteroids out of a very low orbit and throws them at high velocities and in a very rapid succession.
Meanwhile, Exar Kun's most potent force abilities, his amulet blasts, are pretty much nullified by Revan's skill with absorb.