Im working through Sekiro, I haven't played the Souls games yet. I did play Bloodborne. It took a long time to get used to BB, but I'd say i have it down now. Sekiro... I'm still trying to figure out. I feel like I'm hitting the opportunities to attack and parry, the results are yet to come. Got any tips? XD
Honestly Sekiro was so difficult for me, I wasn't into the whole parrying thing and having to kill things twice was an annoying gimmick IMO, so I'd say its the hardest for me personally. Loved Bloodborne, DS1, and DS3 though. Absolutely hate DS2 didn't even bother finishing it.
Different types of hard. Sekiro is about aggressive, well timed combat. Souls 1-3 are more about slow, calculated moves.
For me, Sekiro was more fun and never got irritating. Dark Souls though...