Hmm this is a hard one seeing as pretty much everyone is good looking! I would have to say Giorno since there really isn’t an ugly art piece of him and all of his high quality figures are beautiful!
My first favourite part was part 4 because when i got to that point last May when I was reading the manga it really cemented my love for the series as a whole. I wanted keep catching up(witch I did in October of last year), buy merchandise, and cosplay someone from every part! Once I caught up I had to give parts 5 and 7 as my other two favourite arcs! I’m really liking part 8 as well soo yeah! I can’t say I hate any of the other parts it just I know for sure that part 1 is probably at the bottom sorry!