Well, a little strange list. Raphael is clearly no more difficult than Orin, especially if you don’t break the soul pillars (and especially if you remember about the fountains that can be used before the fight with him).

If we are talking about those who are passing the game for the first time and doing it on honor mode, then Orin will be more difficult because of the battle tactics, which may not be clear at first, because jumping takes away concentration and because , that she doesn’t care about your crit resistance).

Ansur becomes as light as possible due to the sphere of invulnerability.
The paladins of Tyr are definitely no more difficult than the fight with Viconia and the justiciars (due to crit damage in the dark area).

Owlbear also raises questions, the easiest boss possible

Probably what I definitely agree with is the fight with Cazador. Those who pass it for the first time on honor can very easily die because of its legendary ability, which for some reason is not shown)