I've been playing Dark Souls 3 (not having played 1 and 2; they looked a bit dated) and Lost Judgment (a Ryuu ga Gotoku game). Ds3 is dripping with atmosphere, though the lack of being outright told the story and lore isn't my favorite method of storytelling. I beat Pontiff Sulyvahn, one of the bosses, and oh man it was satisfying.
Oh, Pontiff Sulyvahn is an incredible fight. Though I swear he must be wearing heelies or something, with how he can zip across the room to punish you for trying to heal (look at his legs and tell me they actually move).
I beat DS3 two days ago with a pure STR build, now trying to rush my way to the Cathedral and respec into a DEX/FAI weapon buffing build. Parrying and riposteing Pontiff felt so satisfying. Coming from Sekiro and being a 'go from A to B in a straight line' kind of guy, the NPCs in this game were far harder to find (didn't even know Sirris, Yuria, Orbeck and Cornyx existed until I looked them up), and I was shocked that Soul of Cinder was not parryable despite being humanoid.
I can definitely see how coming from Sekiro might inspire a very different playstyle. Personally, I had trouble with Sekiro, because I played all three Dark Souls games and Bloodborne first and became very comfortable with dodging as a sole defensive strategy. Being forced to stand my ground and parry took a lot of getting used to.
(And the NPCs and associated questlines in Fromsoft's games do tend to be frustratingly obscure. It's easy to miss or accidentally sabotage them unless you're playing with a walkthrough open in another window.)
Also, on another note, I've dropped Bloodborne a long time ago because I wasn't good enough to deserve to continue playing. Beat Cleric Beast and Father G, but I don't know, I played like a coward and turtled when the going got tough, at odds with the Regain mechanic. Watching Jacksepticeye, a megafan, play it is putting ideas in my head to pick it up again, but I don't think I'm good enough. And even if I am, there will always be someone better.
On a more technical/playstyle level, I know that, when I first played Dark Souls 1, I was all about turtling and creeping around corners with my shield up. When I ditched it in later playthroughs, I felt naked at first, but as I grew more used to it, there was such a greater sense of mobility and freedom. Greater risk, yes - I could hang back to learn a boss's patterns, but sooner or later, I was going to have to throw myself into that dance and start dodging. But it also felt so much more dynamic and graceful and aggressive. I don't know if this is what you're doing with your DEX/FAI build, but might playing without a shield in something like Dark Souls 3 help you practise for the generally more aggressive combat of Bloodborne?
I'll admit, this really doesn't make sense to me. Not meaning to disrespect your feelings at all, but is the point of playing these games to be the best that ever was? In that case, only one person, or at most a tiny handful of people, would be worthy of them. The point, to me, is just to experience these worlds and challenges for yourself, and find your own ways of overcoming them, and enjoy the sense of triumph that comes with that.