Originally posted by Nephthys
Sidious was mind raping Marek until they got interrupted iirc. Not to mention he could pwn Vader mentally.
Well, that's a great showing for Sidious. Vitiate's unprepared telepathic showings are inferior to Sid's own, in my opinion.
His showings of telepathically "dominating" Revan and Malak are overrated. Firstly, it was done on a rather potent DS Nexus in Dromund Kaas. While arguably in a weaker state than what is was when Sith Empire inhabited it, it's dark enegies were powerful enough to compel Kyle Katarn to to turn to the darkside by itself:
Kyle Katarn traveled there after learning of the witchworld in ancient inscriptions, battling a host of Sith abominations in the planet's seemingly endless bogs before succumbing to the spell of the dark side of the Force.
---Excerpt from Dark Force The Dark Forces Saga, Part 5
Secondly, Vitiate already knew of their arrival, so it was obviously a prepped showing, and not one he did on the fly. Thirdly, Malak and Revan were already skirting very close to the darkside when Vitiate turned them, so that deadens the showing even more-so.