I'm with the guy you quoted. I think Souls games are harder. Too easy to cheese bosses here. I know that Soulsborne isn't void of the same criticisms, yet the means of cheesing bosses are far less numerous and accessible.
Sure you don't have to play the game that way, but playing sub-optimally and restricting your gear and build for the sake of difficulty does not make a game truly difficult. Zelda games can be as hard as these if you are willing to play the entire game on hero mode with 3 hearts, yet most people do not see them as difficult because there are obvious avenues to get stronger in the game.
Also, the bosses here are more telegraphable, with less animations and it seems that they always have a sort of pause between attacks. In Souls, and especially Bloodborne it feels as if bosses are relentless, and picking your windows is harder. Take the Bloodstarved beast from Bloodborne, or even father Gascoins second form, he's relentless. Bosses her perform an attack, then they stop for a moment, then they perform another attack, and so on.
I think the most difficult element of this game is the sheer amount of health that bosses have. The game requires you to demonstrate an understanding of the bosses attack pattern for a considerably longer period than in Souls games. Of course this doesn't, matter if your using one of many broken builds.
You're not this far yet in the game, but O and Y (you'll know what that means) is like a mid-way boss on MNM NGB or as hard as any Mentor boss in NG2, even with Sloth and LW.
I don't think it's particularly fair to judge the game's difficulty based on LW (which has been patched, apparently), but for Sloth I agree, it's really stupid for working on bosses and shouldn't be as effective.
I'll have to get back to you on Bloodborne, but I've done SL1 0 deaths runs (twice to be exact) in DeS and that game had two bosses you couldn't "cheese" or use a winnable strat for. I dunno if you're played, but it's Flamelurker and the final boss (who with no magic is probably the hardest fight).
I've not seen anything in DkS1 runs or anything that I've played harder than what was required in the SL1 DeS run, and I did O&S and didn't realise there was anything to it until like months later) --
I think it comes down to playstyle. Because what's require to SL1 a Souls game is what's required to beat Tachibana easily. Wait for an opening, dodge every attack. That's the bare minimum for difficult NG bosses. That works for basically every single encounter in Souls, but it's not how it's meant to be played outside of bosses (dunno about Bloodborne). The Encounter design allows for Magic/Long-range etc. that trivialises all of the slow attacking enemies. The main component for difficult in Souls is merely knowledge.
You can't just "tell" someone to be better against a NG boss. You can give better strats or say which moves are the best for the fight, as you can with a few NiOh bosses.
With Souls, you just tell someone the elemental weakness or some gimmick and the boss can't touch you...
I'm not goin to make an arbritrary list but NiOh is like Hard on NGB on average, with a couple of exceptions including the one I mentioned. Souls doesn't come close to that.
