The first 7 have a sunset world comfy vibe and more strawhat shenanigans between the "stories" They're a good watch. No lore really in them but they didn't have to.
Movie 8 is only good for the ending and movie 9 is fascinating with the changes it makes but I didn't really love it.
Strong world has a different type of feeling like it's more grandiose but isn't because shiki just feels like any antagonist in the show, same with film z. There's also the strawhat comedy not hitting hard like the first ones.
Film gold I liked the best cause it just had more usage of the setting and wasn't sidelining the comedy for more "serious scenes" It has the best animation out of all the films.
Stampede was cool to see characters like buggy's crwe and smoker be used but all of the cameos were cheap and just done to get a "theater reaction". Douglas bullet was also a mactor, boring villain and have 75% of the movie fighting him was a mistake. The island location made it feel even more boring.
Red Has a slightly better done fight film than stampede. At least I cared about the villain. Yeah, shanks is just fanservice but it was more cooler to have him and his crew be here than bullet. The musical bits I wasn't in love with but it's different and I didn't feel negative about them so ,a plus But just a fine film.