Hewey Duey and Louie vs Wakko Yakko and Dot
Can call upon anyone, within the time they were on air, to help from their respective universes of Disney and Warner Bros.
Can use all Toon abilities to apprehend the other group.
This battle is merely to apprehend the other or to have the other surrender.
There are no deaths and no superheroes from DC or Marvel.
They can move to any sort of plain they wish to battle as they can not die (because they are cartoons).
They can also use jokes to apprehend the other.
You can come up with a story of how they would battle if you want rather than just saying who would win.