I never could understand the hate here behind HoD, given that it blew away its predeccesor.
Nor can I understand why the Chapel of Resonnance loves it so much.

It really isn't that good of a Castlevania at all. Droning un-hummable music (awful at times); Boring, uninteresting characters; HORRIBLE -- ABSOLUTELY ATROCIOUS -- sprites, bright neon palette comes off as tacky, lackluster difficulty, mostly boring, ugly level designs (that get repeated), as too much reuse of same tiles, and you can't even find the secret walls until near the end of the game.
What was good was the dissonant map, chapel stage and entrance hall; the dash mechanics and the resurgence of the item-crashes. But it wasn't enough to overcome the lack of finesse in the art, music, story, presentation and pacing. Although they did at least attempt segmneted sprites again.
You could write it off as IGA's inexperience with the GBA at the time. Fine. That doesn't change the fact it isn't all that fun to play.
I'll give you the fact that COTM had some boring backgrounds too, (I think the chapel is great though), but the difficulty kept things interesting, and because of it, the cards do become a necessary upgrade to advance. The castle layout was way more realistic and there was may more interesting platforming.
Also Natahn's run mechanics.... O_o
The music, while mostly remixes, was good, and was recorded at a much higher-fidelity than even AOS. It could use some more fresh blood, but we did get some awesome originals like "Awakening" and "Proof of Blood".
And while the sprites were smaller, they were much more carefully made.