This is a rather complex question. Batman is clearly intelligent. He has been trained in multiple disciplines, from martial arts to forensics. He uses his intellect to solve crimes and protect Gotham. The Joker, though, is a different kind of intelligent. He has an almost insane creativity when it comes to devising his evil plans. He can read people very well and use their weaknesses against them. He doesn't follow the normal rules of society or logic, which in some ways gives him an edge. For example, Batman often has to rely on his moral code and the law, while the Joker has no such constraints. So, it's not really possible to simply say one is more intelligent than the other.
Well, their relationship is extremely complex. The Joker is constantly trying to break Batman's will and sanity. He creates elaborate and cruel schemes. Batman, while detesting the Joker's actions, also has a sort of begrudging respect for his intelligence. He knows that the Joker is a unique and dangerous threat that he has to keep in check. It's like a never - ending battle of good versus evil, where the Joker represents pure chaos and Batman represents order.
The themes in 'batman vs joker graphic novel' are complex. There is the theme of morality. Batman adheres to a strict moral code, while the Joker has no such constraints. This creates a contrast that drives the story. The theme of the power of insanity is also present. The Joker's insanity gives him a certain kind of power, and Batman has to find a way to counter it without losing his own sanity. Additionally, the theme of the city as a battleground is important. Gotham is where their fight takes place, and it represents the struggle between chaos and order on a larger scale.
The main characters are, of course, Batman and the Joker. Batman is the Dark Knight, a vigilante who uses his skills and gadgets to fight crime in Gotham. The Joker is his arch - nemesis, a deranged criminal with a warped sense of humor.
At first, Batman would be shocked and a bit confused. But quickly, his detective instincts would kick in. He would view the deaged Joker as a new and unexpected threat. He'd start gathering information about how the deaging occurred, in case it was part of a larger, more sinister plan. Batman would also be very careful not to underestimate the deaged Joker. He might try to isolate the Joker in a secure location to prevent him from causing chaos in Gotham. And he'd be constantly on the lookout for any signs of the Joker's old, devious self emerging from this new, younger form.
Well, in the real story of Batman and Joker, Batman represents order and justice in Gotham. He uses his wealth, intelligence, and physical skills to combat crime. The Joker emerged as a symbol of anarchy. He doesn't have a clear motive like money or power but just loves to create chaos. Their encounters are always intense, with the Joker constantly devising new and diabolical schemes to challenge Batman.