Originally posted by Stealth Moose
Dooku on his own is a threat to Yoda and Sids although they would likely beat him eventually.
No, Dooku is not. He really didn't have much of a chance of defeating Yoda whose light side powers were diminished on the dark side nexus of Vjun, and who was struggling to fight off the temptation of the dark side (not the best state of mind while trying to focus on defeating your opponent), while Dooku was taking full advantage of the amp the dark side nexus gave him. Basically: Dooku, at his best, was forced to flee from Yoda, who was perhaps at his worst. Their fight on Geonosis had Yoda holding back and not attacking Dooku with the force at all other than a redirected lightning attack in which Dooku was capable of deflecting. So I don't assume Yoda was trying his hardest to take Dooku out in a saber duel either considering how he held back immensely in their force duel. Not to mention Yoda expresses that he had love for Dooku in DR. So, no, Dooku is no threat to Yoda or Sidious, and they both can defeat Dooku in a very decisive manner, which is why he was hesitant in overthrowing Sidious with the help of Ventress.
And if you don't agree with that assessment, you only need to compare Dooku's performance against Ventress and Savage to Sidious performance against Maul (who is considerably more powerful than Ventress) and Savage (who was more trained and more powerful than when he faced Dooku). The former struggled and fought for his life against his duo, while the latter was casually playing and not giving it his all with his duo (Sidious wasn't even trying to kill Maul, at that). Furthermore, Sidious proved that he can easily over power Maul and Savage at the same time with the force alone, without even having to resort to using his saber Sidious is above Dooku by a decent amount, as is Yoda, who is practically Sidious' equal.
Originally posted by Stealth Moose
Zonakin is technically Anakin tapping his potential which means he spikes higher than Yoda or Sids
No, that was Anakin tapping into his raw power that he had at the time (raw power shouldn't be confused with potential), which enhanced his physical strength, enabling him to batter down Dooku's defenses, nothing more (well, nothing more that can be proven anyway). His defeating of Dooku has no bearing on how he'd do against Yoda and Sidious, considering that they both are physically superior to Dooku in every way. Just like Savage's disarming and flooring of Dooku had no bearing on how he did against Sidious, who was not only able to handle Savage's strength with one arm, but was capable of overpowering the zabrak with his own physical strength, being able to send Savage him flying with a kick.