The Rule of two and Rule of one are just two of many ways to run a Sith state or order. If you had power or teachings in which to found a Sith order, what creed would you create or how would you govern/teach? What is the basis for your ideas, and is there any existing or similar examples in the EU?
__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk
That's not a sith order. That's a bunch of rejects worshipping one man. I'd go with Vitiate's Order but only if you had a godlike being as the leader.
__________________ There's a man goin' 'round takin' names.
An' he decides who to free and who to blame.
Everybody won't be treated all the same.
There'll be a golden ladder reaching down.
When the man comes around.
A different version of the Revanites, more like the Order of Shasa in that it follows the doctrine of Darth Revan.
And they weren't rejects at all, lol. The Revanites had some of the most powerful of the respective orders and stuff.
Even Darth Marr shit his pants when he found out the Revanites massacred the entire complex of the Imperial Guard.
__________________ "There is only Revan. Only he can shape this galaxy as it is meant to be shaped."