>>281785814
Let's see:
Part 1: Great. Yeah this one is probably the best ending Araki has written.
Part 2: Not very good. The main villain becomes unstoppable and then loses in extremely contrived way, with Joseph even admitting that it was pure luck things worked out that way. While funny, it is also very underwhelming, definitely not a good ending from a narrative perspective.
Part 3: Good. Jotaro develops new time-stop powers out of nowhere, but other than that it is a pretty good.
Part 4: Awful, Kira develops highly contrived time travel powers out of nowhere and then jobs to a fucking ambulance, and plenty of plot threads are left untied. The actual fight is pretty good, but it's not enough to salvage the mess.
Part 5: Even more Awful, Freaky Friday for a final fight, Polnareff gets character assassinated, Diavolo's identity doesn't play into his defeat at all when the entire story has been about discovering his identity in order to defeat him, Diavolo's powers continue to be inconsistent, almost no denouement with Araki instead wasting pages on a meaningless and boring flashback chapter.
Part 6: Not very good. There are a lot of neat ideas and Pucci's defeat is absolute pottery, but I think the mechanics of how Made In Heaven don't really make sense and everything that happened being undone leaves a bit of sour taste in mouth. Also he forgot about F.F. which makes the happy ending fall a bit flat.
Part 7: Good. Dio being some random alt-universe Dio we don't care about instead of the Dio we know is a blunder, but other than that it's good.
Part 8: Worst thing Araki has written.
That's 3 good/great endings, 2 that are not very good and 3 that are terrible. That's not a very good track record in my opinion.