Guys, you're wrong, I think. It's not that simple. Loog at the jedi, just befere tey fight with Grievous. Look at K'Kruhk. He's exhausted. All of them are. And they don't know Grievous yet.
And, just like Dooku said - Grievous without advantage (like surprise, fear etc.) can't fight with best jedi as equal. In LoE Dooku says, that jedi like Kenobi, Cin Drallig (Shaak Ti in different version) can beat him, and if he hasn't any kind of advantage, he should run away.
Shaak Ti isn't described as that good warrior as Fisto, but she is still really nice, and probably close to him.
It's - just like Nephthys said - LoE, but also star wars cartoon.
"Don't let your pursuit of trinkets cloud your reality. Remember what I taught you, General. If you are to succeed in combat against the best of the Jedi, you must have fear, surprise, and intimidation on your side. But if any one element is lacking, it would be best for you to retreat. You must break them before you engage them. Only then will you ensure victory and have your trophy." - Dooku
Anyway, Shaak Ti lost to Grievous twice, its true. But twice in star wars cartoon (the only source where Grievous's abilities are exaggerated). In ROTS Kenobi beat him very easily (in a saber fight ofc), in TCW (it's above cartoon as a canon source) he is unable to defeat Fisto, and probably even Eeth Koth (in fact Koth fight with his hand injured, and still Grievous needed help of his droids).
Ah, and in my own theory Grievous fought Shaak Ti once. For me, LoE is a better source of kidnapping the chancellor (LoE and cartoon have the same status as canon sources - C-canon, but ROTS novel (what is actually above LoE and cartoon) says that what happens in LoE is more truly.
While Shaak Ti was exhausted both times she fought Grievous. Was she not one of the six greater swordsbeings of the Jedi Order.
I see these 6 as being the "Greaterswordbeings" in which case Grievous' utter pwning of her puts him pretty high on the PT dueling tier.
I'm not so sure about your "six greater swordsbeings of the Jedi Order' list.
Yoda, Windu, Skywalker, Kenobi - right, but Shaak Ti and Cin Drallig? In my topic about jedi masters, i asked about the best of them, and it was really hard for each one of you guys to create a common list. And probably Kit is above Shaak Ti and Drallig....
Canon sources show that everytime Shaak got pwned by Grievous, Grievous had fear surprise and intimidation.
On Hypori he had all 3 and Shaak Ti was tired.
On Coruscant, she was tired and she had already shown earlier that she was absolutely terrified of the good General.
Shaak Ti also has that impressive feat of fighting off about 20 Magnaguards at once, blocking saber blows and electrostaff blows barehanded.
The moment she heard his footsteps she practically crapped her pants in fear of another spanking.