This is a very intriguing question, and an even more intriguing match up. No doubt both of these characters are some of the most if not the most iconic villains in their respective universes. The Joker being the arch enemy of the great Batman himself who's been able to fight along side God's but has never truly been able to deal with the Joker and the King pin, aka Wilson Fisk, the criminal mastermind who's brushed shoulders with numerous marvel comics heroes, including Daredevil and Spiderman. To answer this question we have to analyse their skills, weapons of choice and their abilities.

**ABILITIES**

Kingpin: The Kingpin doesn't have any superhuman abilities whatsoever, but he's made of pure muscle and so his large size often makes people think that he's just fat, they often change their mind when he hurls them across the room like they were a rag doll. He possesses not superhuman, but far more than average strength, one would say that he's even stronger than body builders and professional strong men. He's good with hand to hand combat and has gone toe to toe with both captain America(has super human strength) and Daredevil and come out unbeaten.

Joker: Ah yes, the psychotic criminal mastermind of the DC universe that we've all come to know, love and resent. Just like the Kingpin, he has no special abilities, worse off, he doesn't know any Martial arts or hand to hand combat, he doesn't have any muscles, but his mind is so warped that the shear madness that goes on in his head is enough to get him out of any pickle.

**WEAPONS**

Kingpin: All though he's mostly known for beating the sweet Jesus out of his opponents with his bare hands and sumo style fighting techniques.l, he's also been known to wield a walking stick which can shoot a laser out of it as well as sleeping gas. Apart from that he also wears Kevlar armour so both his defense and attack are formidable.

Joker: The joker is a master chemist and uses all sorts of weapons and contraptions which range from acid spray to Razor tipped playing card or his famed electric buzzer. Whatever the occasion, he always has a suprise up his sleeves.

**THE FIGHT**

In my opinion, I think the kingpin would win in an outright battle. He's the more powerful and experienced fighter, and that's not the jokers typical kind of fight. The joker would probably get beaten to a pulp and laugh all through even as he dies. The thing is, the joker wouldn't just lie down and die like that, no, expect him to have a trick up his sleeve like a bomb set to go FF if he dies or poison injected into his face so that if you punch him too much you'll get poisoned too. Whatever the case, the kingpin will win the fight, but I doubt he'll survive it. The joker will definitely die first but the damage that he deals to the kingpin will probably be fatal and the Kingpin's faith will probably be sealed long before he kills the joker, he just won't know it because that's how the joker is. Mutual destruction is assured if these two should ever go up against each other.

I hope this answers your question.