Would the following combatants fare better against Yoda or Sidious?

Yes but the purpose of this thread is to establish who'd do better against who based on their lightsaber styles, knowledge of Sidious/Yoda, etc.

Originally posted by SunRazer
Yeah, Sidious is much more brutal and more likely to use the Force mid-combat. If he's not holding back to revel in his opponent's struggles, then yeah, he demolishes anyone here. Yoda would be somewhat more reserved, I'd think.

Well, according to ROTS script (which isn't - unlike Stover novel - contradicts the movie), Whirlwind of destruction was able to overhelm and disarm Sidious himself. I wouldn't say, that he was less agressive duelist. As all-out fighter, indeed, Palpatine was far more agressive.
And as I remember - according to "Jedi Path" - Luke stated, that Sith' Juyo might be inferior to Jedi's forms in a longer fight

Originally posted by UCanShootMyNova
Yes but the purpose of this thread is to establish who'd do better against who based on their lightsaber styles, knowledge of Sidious/Yoda, etc.

That would be RotS Vader, then, at the height of his power, during Knightfall