@Force_of_Nature It's a bit of a tough one. Starting off with Sekiro, Sekiro doesn't even play like Dark Souls in terms of gameplay which is interesting, but the damage modifiers is basically like Dark Souls. Probably the fastest one when it comes to pacing and action for their game, similar to Nioh where it's a more fast paced Dark Souls but the concept is the same.
Sekiro for example doesn't use Stamina, but boss and enemies hit just like in Dark Souls & Nioh. A completely different game really. Between the two, I slightly favor more Nioh 2 because of the vast customizations. Nioh 2 out of any action souls-like game has the best customization, and I think Elden Ring is right behind it.
Ah, thanks for the breakdown @DestructionBomb. I've never really been a fan of FromSoftware's work, but I've heard good things about Sekiro, and Nioh 2 is awesome in both gameplay and customisation.