Zephiel7, the following people could easily defeat Revan:
1) The Ancient Sith (Ragnos, Kressh, Sadow etc.)
2) Exar Kun
3) Any Luke as of NJO
4) Freedon Nadd
5) Ulic Qel Droma (Possible, moreso of a stalemate)
There's probably more, but i can't think of anymore at the moment, however that puts Revan out of the top 5, as the Ancient Sith take the first 3, followed by either Nadd, then Kun or Luke.
Oh, come on, Malak and Bandon aren't that powerful, especially if there's no star forge buffing malak. That battle wouldn't be much different than Yoda vs Vader and Maul. tough fight? Yes. Yoda still takes it in his prime? definitely... the others? I really like Yoda, but barring some miracle he's a goner.
You've got to be kidding me, Malak or Bandon would both have to be incredibly lucky to even get a hit on Bouncy ball Yoda. Yoda was at least as good as Dooku and Sidious, Sidious being one of the most powerful Sith since the ancients. Malak goes down, Bandon's not even in the fight. Yoda force pushes either him or the ground he's standing on out of the arena and focuses on the big guy.
That was when he could not control it properly. Once he could control it, the beam was much thinner and resembled things like heavy blaster fire and force powers like force lightning. There is no evidence to suggest it is much more powerful and I highly doubt it would be faster then lightning for instance.