Jedi exile couldnt sense being stabbed in the back, she didnt resurrect the order herself. Mastering lightsaber forms is common in average jedi during the Prequel Trilogy. Peak Lightsaber combat and force powers were finally met by the Jedi during the clone wars as per lucas.
The Sith Emperor isnt even close to being as powerful as Sidious. Yoda,Windu and Anakin were said by Lucas to be able to challenge Sidious. Revan doesnt stand a chance.
Bastila shan - She's nothing.
Windu could easily take the Jedi exile, Shan and Revan at once, your underestimating how powerful the jedi and sith had become by the time of the prequels.
And you, sir, greatly overestimate Windu's power.