Originally posted by XSUPREMEXSKILLZ
...Jiren was also fatigued.
And a fresh MUI Goku is kind of a unicorn, given that it doesn't even seem possible to access unless you're near death.
If we even do get a Beerus vs Goku rematch at some future point, I can just imagine he'll start out throwing the biggest buster ball he can, so Goku has no choice but transform or die.
Jiren *might* have been *slightly* fatigued, but even IF that's true, it certainly didn't hinder him at all. Keep in mind: Jiren was beating everyone at the Tourney(inc. stage 3 omen-UI Goku) in an immensely suppressed state. He *only* started going all-out and fully exerting himself AFTER MUI finally entered the fray. Aside from that, I don't remember ANY comments suggesting that Jiren's power had been depleted at all from his previous battles -- quite the contrary, actually.
Conversely, it was reiterated several times that Goku was extremely weakened/fatigued/depleted as far back as ep.111... So at the very least I'm confident that he was a lot more fatigued than Jiren when MUI happened.
As for this thread: once MUI Goku became serious, he essentially dropped a full power Jiren with TWO attacks. He was clearly more powerful -- and significantly so, imo.