I liked the OVER, Halekulani, and Giga fights, because even though they were very similar they were still quite funny; I think the first episode in the OVER fight was the best, because it was flat-out hilarious…
(It's revealed that Over isn't defeated)
Bo-BoBo, Don Patch, and Jelly Jiggler (all cheering): "HE'S OKAY!"
Beauty: You guys are CELEBRATING?!
And finding out who OVER's "true form" was was just plain hilarious.
However, doing another battle just like OVER/Halekulani/Giga next will be too much. It's okay for now, but I don't think I could take another one, though fortunately the next arc is a bit less formulaic.
Still, Denbo's song was brilliant. They dubbed it excellently...
So yeah, even though they were formulaic, the humor was enough to make it interesting.