"Jiroppo" vs. Gogeta

Jiren and Toppo use the potara to fuse into "Jiroppo"

Goku and Vegeta use the dance to fuse into Gogeta.

TOP versions of Toppo and Jiren. Goku and Vegeta from the Broly arc.

Jiroppo stomps.

The implications of "Jiroppo"... Stacking Toppo's Destroyer mode on top of Jiren's Limit-Breaker mode, and amping both sets of abilities tens of times over.

Crazy.

Wasn’t the Potara fusion stated to be stronger than the dance?

Originally, yes.

But nowadays the implication is that they're equal. In fact, I'd argue that Metamoran is actually superior once God ki enters the fray, as it lasts a full 30mins regardless, whereas Potara only lasts a few minutes.