Now you are wanking the HoT.
We haven't seen anything from him other than besting mediocre Jedi and Sith, you're putting everything on his battle with Vitiate, and Vitiate was at a fraction of his greatest powers. His powers fluctuated throughout the centuries, it was his esoteric abilities that mainly allowed him to gain a lot of power to defeat the Dark Council or to bestow power on his subjects.
I do not think he was at his peak even when he was challenged by Revan, as earlier he'd wiped out an entire Dark Council in a flash of light. Revan had years, could draw on both lightside and dark side energies, if he can draw on the dark side, for hundreds of years, you better believe he's far stronger than HoT; the Sith, Jedi, and opponents he defeated, including the weakened Vitiate (and we don't know the extent of this weakening) are completely unquantifiable, don't add up to Revan's accolades.
HoT was not stronger than Satele Shan, I don't think he was even close. The online website encyclopedia thing did said powerful, but Bane was stated to be the most powerful Sith in history, Sidious claimed himself the most powerful Sith in history before being immediately contradicted by sensing a presence (presumably his master) greater than his own. That can be easily interpreted as hyperbole.
I just can't give you this, Revan was also a prodigy, in fact KoToR Revan would only be HoT's peer up until he faced Malak - due to his experience as a Sith Lord, it took him longer to resist Vitiate's mind domination but then again, as before, Vititate might have been weaker when he faced the Jedi Strike team than when he brain-washed Revan and Malak. And resistance to mind domination or to the dark side's affects suggests a strong mind, not necessarily a greater amount of Force energy.
Vitiate sensed great power in HoT, but then said that he lacked to will to harness it. Doesn't mean much either. HoT isn't a Skywalker, he had a biological father, his abilities may have been purely esoteric, like the Nightsisters.
There's nothing that puts HoT that far above Revan, and you're pretty much saying everyone is stronger than Revan, and based on your one quantifiable feat of defeating a weakened Vitiate, I don't see HoT the same way you do.