Originally posted by Borbarad
Oh please, Glentract.
Dooku tooled Asajj with force lightning and tooled her in matter of seconds in a lightsaber duel. Anakin before ROTS had some trouble with her but Vader is Anakin who can use his anger at will and has more than 2 decades of additional force and lightsaber training + some nice lightsaber duelling experience (since he proceeded to kill Jedi after ROTS).Asajj will be gone in the matter of seconds and Dooku isn't enough to defeat Sidious and Vader at once.
If the'll go down they'll go down at 7 but even there Sidious could take down Bastilla with force lightning rather fast and they would possibly be able to take down Malak and Bandon.
Dooku could do the same to Vader in this case. If Vader fights Asajj in lightsaber combat he'll lose as he's to slow. Just look at how Vader fights in ROTS, it's much better then what we see from him in the OT. I think you seriously underestimate Asajj.
Sidious will lose to Dooku. Dooku has better lightsaber skills and his force powers are enough to protect him from Sidious.