This is how I feel about my favorite Jojo's Bizarre Adventure parts.
PART 3 (Stardust Crusaders): lol'd and bawwed. You can get the English volumes from Viz!
PART 4 (Uncrushable Like Diamond): Yes people actually do get mauled and die horrible deaths in this. It's kinda like Detective Conan only with more eccentric superpowers.
PART 7 (Steel Ball Run): This does have a plot! Also needs to be noted that the art goes up several notches when the series switches from a weekly to a monthly schedule i.e. Mr. Araki has more time to crosshatch Gyro's sexy twisted torso.
Edit: Part 5 [link]