My gripe with Lords of Shadow is that to me it doesn't resemble Castlevania one bit, neither in mood/atmosphere nor gameplay. It just doesn't have any kind of Castlevania feel to it, from what I've seen. It's one thing to be innovative and cover new grounds; it's another to do something so left-field it no longer resembles what it's meant to be a part of. It looks like a God of War wannabe, and nothing about God of War says "Castlevania" to me. Yet because Hideo Kojima saw Lament of Innocence, which stupidly turned Castlevania in a hack and slash direction, and then saw God of War a year later and exclaimed, "This is how a 3D Castlevania game ought to be" (I don't have an on-hand reference for this, but this is something he said around the release of God of War), we now get a hack and slash God of War-style game which is basically Castlevania in name only. Yeah, sure, the protagonist is in Simon Belmont-esque armor, is apparently a holy man, and has something resembling a whip (though it looks and behaves more like Kratos' blades), but that's hardly enough to call it Castlevania. Is Dracula even in this game, or at the very least alluded to? I haven't read anything about the plot, but the trailers haven't seemed to suggest any such thing—though it's been a while since I saw the one from last year or whenever.
Lament of Innocence, despite getting the gameplay all wrong (Castlevania just should not be a hack and slash game, and there ought to be lots of platforming), at least looks like a Castlevania game. It has the mood, the atmosphere, the feel—at least of the Symphony of the Night era, which in turn resembled in a lot of ways the older games. And despite its innumerous flat halls and rather uninteresting level designs, it has some really pretty textures and lighting, plus the great music to go along with, so it's an experience, and one I quite enjoyed despite the somewhat dull gameplay. But Lords of Shadow? It doesn't appear to have any such gothic atmosphere. It looks like a decent game (one, however, I admit I'd likely never play if the name Castlevania weren't attached to it—I'm a bit of a loyal fanboy despite my misgivings toward the series as of the past eight years or so), but I'd prefer they just call it Lords of Shadow and lose the name Castlevania. I don't want all the newbies, like a certain friend of mine who's really excited to play it, to pick this game up and think, "This is Castlevania!" thus etching in their minds what Castlevania is all about, when it resembles nothing of the sort.
The N64 games are really kinda crummy in a lot of ways—I fully acknowledge many of their flaws—but at least they look and play like Castlevania games in 3D probably ought to. They translated the old style and feel to the 3D realm, and did a pretty good job at it. Lament of Innocence brought the mood and look over, so I consider it a Castlevania game; but Curse of Darkness didn't get the look and atmosphere, so that game doesn't really feel like a Castlevania game to me (since as I mentioned above, the PS2 games don't really play like Castlevania games).
Yeah. That's a lot of text, and in the end I'm probably conveying nothing of any significance to anyone else, but that's how I feel on the matter.