Oddly enough, I enjoyed Far Cry 5 even though it followed pretty closely the same formula. Something about the game really stuck out to me, while 4 and 6 were horrible in comparison imo.
For some reason I couldn't finish 6. I've played them all and enjoyed most of them but something about 6 just started feeling a bit repetitive about halfway through, and my interest kind of died out. (which is weird considering the mental trauma of climbing radio towers repeatedly in previous ones.)
I was getting ready to tell you how amazing 3 was (first I played), how I can barely remember 4, thought 5 was pretty good, and something about 6 - then I realized I don't remember 6 at all. Zero idea. Maybe I played it and it ran in with 5?
Most enjoyable part of 6 for me was the hype when it got announced. The popular villain + it being situated in Cuba iirc was what pulled me in... Only disappointment followed
I enjoyed 5 too, but I think they should have focused more on fewer side characters. Faith was my favorite herald, but she felt like the shortest one, and we rarely got to see her.