What is the best Warriors game for PS4?

So I'm trying to see what is the best Warriors game for PS4. There are quite a few of them and honestly trying to sift through them, the reviews, the different versions of seemingly the same game, features and functions of them all has me pretty lost!

This all started with me seeing Samurai Warriors Empires in the store and being interested in the inbetween mission portion, and of course the button mashing, mowing down hundreds of enemies portion.

I'm also interested if there are any same console coop options on any of the Warriors games. It's not 100% important, but the ability to play with my wife coop is always a fun prospect.

So, what is the best warriors game on PS4 and why? If I only get 1 warriors game for ps4, which would it be? Which has the best features? And side note, do any have easy to access coop for same console?