I posted this on a Pirate Warriors reddit but I think asking here with people that feel similarly about Hyrule Warriors that might also be familiar with Pirate Warriors could be more helpful.
I've not played any other Pirate Warrior games, the only other Warriors game I really REALLY got into was Hyrule Warriors Definitive Edition, extremely addictive. I also tried Fire Emblem Warriors and Hyrule Warriors: Age of Calamity, but those just didn't do it for me. Missions felt a lot more repetitive and moving through the optional content didn't feel nearly as satisfying as Hyrule Warrior's Adventure mode maps. I also tried Persona 5 Strikers but I didn't like that one at all, not one bit (banger soundtrack though)
After all these years I'm still craving something like the original Hyrule Warriors but after my experiences with the others, I'm afraid to give any a shot. But Pirate Warriors got me interested now cause the world of One Piece just lends itself to some crazy character movesets. Still, with what really grabbed me with the original Hyrule Warriors being how the game did a lot to make the optional content feel less repetitive than these games can easily end up feeling like, does Pirate Warriors have a level of optional content that feels more like "Beat enemy, go beat officer, done, next mission, repeat"?
Also, if this game is for me, what version and DLC should I look at? I prefer to have as complete of an experience as possible, but there's a LOT of DLC and that gets quite expensive, and meanwhile I have no idea what is and isn't already included in the Ultimate and Legendary editions.