Broly would win this in base form with a single punch or casual energy blast.

I know Kenpachi is a ruthless strong fighter but Broly shows No mercy and can destroy a single planet in one blow and still have tons of energy left 2 fight.
a normal kamehameha can't do a thing 2 him.

It might be close but I think Broly would win this one.

Are you kidding? Kenny thrives on violence. No challenge, Kenny for sure!

I reckon Kenpachi would be the winner of this... He just never goes down or gives up. Plus, these two shows would have to be equalised with other, so that the general amount of strength shown by any average character is not ridicuously overpowered, like Broly being able to destroy a planet. Otherwise, it would make the whole fight pointless, when one anime allows planets to be destroyed and the other allows stuff all to be destroyed. XD

Broly would actually flick Kenpachi's head off and shit in the hole now made before Kenpachi could react.

This is a really excellent poll both have very immense strength and use brute force in battle.
Kenpachi has the upper hand speed wise a major factor in battle and also has a knack for understanding and analyzing his opponents as well as their abilities

Broly is highly exceeds Kenpachi in terms of strength and Durability(It took 3 highly concentrated kamehamehas to kill him the second time) plus he isnt even in the right mind meaning he's hard to read for Kenpachi

The determining factor would have to be range more than anything else Kenpatchi may be fast and powerful in physical attacks but spiritual attacks Kenpatchi is seriously lacking where as Broly has demonstrated to be quite skilled he has more methods of attack he could go close-range, mid-range and long-range unlike Kenpatchi who only has close-rage and semi-mid-range at his disposal

Or maybe I'm over thinking it XD

^ Kenpachi has no speed feat near Saiyan Saga Vegeta, he ain't touching Broly.

Broly busts planet while having his Ki shield up gg

kenpachi will win you all most know now he is much stronger and for the fact his one one and the mass pain that wil just make him all in to fight more with broly