Yoda is better with the force then Sidious, and althuogh not as offensive Sidious could not win from him.
Anakin vs Mace, I have no idea on how powerful Mace is with the force but seeing as he is second in command he'd probably beat Anakin.
Maul vs Rots Obi, Obi with ease. Now the kill will be hard, and Sidious is probably the only one thats going to die the rest will just be burried under tons of junk.
Well i dont know much about Plagues apart from what sids said about him ep3 but i gather he was really powerful. If so he could possibly match yoda, maybe?. he would certainly be more aggressive. Then Dooku on Obi Wan, Obi wan is pawned with no lightsaber. and Sids vs mace, and although mace is a great swords man i dont think he could match sids in the force. so the sith would take it.
The Sith as a team have a much better chance. If you dissolve this into mini one on ones, you're defeating the purpose of having teams. And when there's a team that involves a considerable Force user like Sidious, it immediately means the jedi have to work twice as hard just to engage in melee, since they don't use aggressive Force powers.
Its a force only battle Janus... There is no melee fighting.
Now Yoda is the most powerful force user and would launch more crap at anybody then the rest. But he and Sidious are going to be really bussy with each other. Maul and Anakin and Obi Wan and Mace will just fight with the force for a very long time, neither one of them taking a kill.
What is this then? Junkyard wars with the Force? This is damn stupid- the Jedi don't have any real aggressive jedi powers to compete with Sith powers, and using the Force aggressively is against their code and teachings. So you're basically asking them to step entirely out of character and improvise on a scale which we've never seen them operate on, and defeat the sith without melee? Ridiculous.
Yoda and Sidious are the greatest Force-users on their either team. Yoda is superior to Sidious, but not by leagues. This will be a long duel. Mace can't match either - but I'm willing to bet that he's more of a match for Darth Maul (but that's just my opinion). Obi-Wan and Anakin are another long duel.
Longest duel: Yoda vs Sidious.
Shortest duel: Mace vs Maul.
Then Mace and Obi-Wan double team Anakin, and Anakin dies.
Then Yoda eventually overcomes Sidious.
The Jedi Win.