They easily beat 4
We've already seen sidious stomp maul and opress so he could probably take ventress as well
That leaves vader to beat dooku
5 is too much for them, depending on which luke it is luke and yoda are stronger than vader and up there with sidious
3 v 2 just doesn't work out for vader and sidious so they defo die at 5
1. Kanan, Ezra, Maul, Ahsoka - stomp. If Sidious had fun with Maul and Savage, he can do it again with Maul, Kanan and Ezra, while Vader deals with Ahsoka. Opponents don't stand a chance.
2. Kylo Ren, Starkiller, General Greivous, Asajj Ventress - there's no Starkiller in Canon, so he begins the fight as a corpse already. Then Sidious and Vader win.
3. Mace Windu, Plo Koon, Ki Adi Mundi, Kit Fisto - Sidious and Vader can pull it off. Within Canon only realm, this team is obviously more impressive than original B-Team, but Vader can draw Mace long enough for Sidious to strecth the other three quickly, or Sidious can have a good contest with Mace, Ki-Adi and Kit, while Vader beats Plo and then the Jedi slowly fall down.
4. Savage Opress, Maul, Count Dooku, Asajj Ventress - debatable, but as Hutchy said, add in Asajj and Sidious fights seriously instead of having fun, but still wins, while Vader can hold off Dooku at least long enough for Sidious to kill one/two of the others.
5. Luke Skywalker, Yoda, Mace Windu - RotJ Luke fights with Vader for an extended period of time, while Sidious is no match for both Yoda and Windu at the same time. Sidious falls way before Vader can dispose of Luke with the Force.
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__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk