Overall Thoughts on Jojo's

FYI: THIS IS MY RESPONSE TO THE ENTIRE SERIES, BECAUSE YES, I HAVE NOW READ EVERY CHAPTER OF MANGA THAT HAS BEEN PUT OUT.  SO YES, THERE ARE MASSIVE SPOILERS.  Of course, being told explicitly even about a Stand doesn't necessarily spoil anything because things sound so bizarre out of context you don't understand, but.  Proceed at your own risk.
Imma include this here, just in case you're just curious but haven't read Jojolion yet and don't wanna click below the cut.
My list of Parts from Best to Worst is as follows: Diamond is Unbreakable, Steel Ball Run, Battle Tendency, Vento Aureo, Phantom Blood, Stardust Crusaders, Stone Ocean, Jojolion.
My list of Jojos from Best to Worst is as follows: Jotaro, Josuke, Giorno, Jolyne, Joseph, Jonathan, Johnny, Gappy.
My description of the Parts:
Phantom Blood: Castlevania.
Battle Tendency: Indiana Jones with Ancient Vampires.
Stardust Crusaders: Travel Narrative/Traditional Shounen Fighting Arc.
Diamond is Unbreakable: Murder Mystery Slice of Life.
Vento Aureo: And now for Italian Mafia.
Stone Ocean: Prison Breakout + the End of the World.
Steel Ball Run: Horse Race, Relics of a Saint.
Jojolion: A Less Coherent Twin Peaks (Mystery + Soap Opera)

( My take on Jojolion (mostly issues I have with it), plus my ranking of Parts and Jojos (with explanation below the cut) )