Originally posted by Q99
He did make a difference against Sids in the saber portion.
Emphasis mine.
We have seen that Sidious was capable of ragdolling the brothers at once with the Force. The saber portion of the fight just happened because Sidious wanted it to happen. He could have just killed the brothers with his force powers. And Yoda is, at the very least, his equal in force powers.
Yoda wouldn't kill the brothers, though. But it illustrates quite nicely that, in a contest of force abilities, the two Zabraks would be nothing but bystanders.
And in sabers? Let's face it: Yoda could handle the attacks of three Jedi Masters (one of them being Depa Billaba), without even bothering to ignite his own weapon and without bothering to move much. In fact, reading the description of that particular lesson once again, it now appears to me, like Yoda did to the trio what Valkorion was doing to Arcann. Just using the Force to make himself untouchable by their sabers. [That's mere speculation of course.]
Still, that probably means that none of the trio would be capable of touching Yoda with a lightsaber. So how do they win?
They would need to attack in a really coordinated fashion in order to take Yoda down. But this would involve (just as example) Malgus attacking Yoda with the Force while the brother launch a melee attack on him. And I don't see that working out for the trio, mainly because I don't see Malgus above Dooku level in terms of force abilities. And Yoda was very well capable of dealing with Dooku in terms of force powers - almost casually. So even if Malgus attacks him with the Force, chances are that one of the brothers will be on the receiving end of such an attack (e.g. deflected Force Lightning). And if they close in, Yoda would tool them with his lightsaber - or just ragdoll them with the Force.
So it really comes down to Yoda vs. Malgus after a while (imho), and the Sith won't win that one, even if Yoda has to deal with the brothers first.