Needless to mention the depth of "JoJo plot", since it looks like a classic battle shonen; we must instead speak of opera characters, which are really worth mentioning.
In the first generation there is the contrast between the two protagonists "Jonathan joestar" and "Dio Brando." Jonathan joestar (also known as JoJo all its descendants) is the embodiment of absolute good. A man who protects the weak even at the cost of his life and trying that bit of humanity present in the heart of the wicked, representing the figure of the champion par excellence. Dio Brando, adopted by joestar family, is the total opposite of Jonathan. A selfish man who takes pleasure in ruining the lives of others (see the fury that evidence against the main protagonist), and who gets to kill his own adoptive father; It represents the figure of the Devil. The roles of the two characters are taken to the extreme in order to make it clear to the viewer in a more marked way the opposition between good and evil.
In the second generation (unlike before) there are a lot of characters who stand out in the characterization, but the ones that have impressed me the most were "Joseph joestar" and "Wamuu". Joseph joestar, grandson of Jonathan, is one of the best anti-heroes I've ever seen in a manga / anime. A man of unpredictable actions that sometimes depict him more as a figure "evil" than as a real protagonist, funny and sometimes even crazy. Wamuu is a man full of pride, honor where you can see some slight tinge of humanity. Since fighting his only reason for living, he is struck by the words of Joseph, which then leaves the train in view of their future confrontation.
Because it is considered one of the best shonen battle of all time?
First, the "best shonen battle" expression is very generalized. We must distinguish two types of battle shonen: strategic and non-strategic. A good battle nonstrategic shonen is considered that when there are good animations, choreography and sometimes even the unpredictability in the outcome of the battle. A good battle strategy instead shonen is precisely characterized by more or less unpredictable and exciting strategies.
"JoJo" belongs to the second category, and we must say that although you already know the outcome of many battles (as said before, the story of "JoJo" is quite predictable), this product will keep you and will always want to know in what so the bad guys will be wiped out. "JoJo" was one of the first works that gave birth to the shonen battle strategy; without it, many anime / manga from the likes of "HunterXHunter" probably would not exist. There are many works in which the presence of "JoJo" is felt and some of them are not even of the battle or even of shonen.
The famous pose of "JoJo" are present in "Monogatari", "Gurren Lagann" "Medaka Box" and many other works. The "wryyyyy" spoken by Steph of "No Game No Life" is a clear reference to the direction of JoJo vampires. The coat and black hat Mako ( "Kill the Kill") recall the clothing Jotaro Kujo (presented as a figure in the latest episodes of the first season and starred in "Stardust Crusaders").
Maybe there are other quotes of "JoJo", but these are just examples that make it clear how important it was in the history of anime and manga.
