Very well written!
However, I just played through both games too, and I have to say that even though some improvements were made in LoD, all the new flaws that came along ultimatly made it a worse game than the first one.
I will list briefly what I felt got downgraded in LoD:
* Castle wall - already a horribly annoying stage, that got stretched out even longer, forcing you to go up the towers several times in a trial & error-fashion to solve a crank-puzzle.
* Villa - Loved the original one, but with all the new extended puzzles it's a real pain to run around. It sucked the joy out of it. And the new garden maze chase is nowhere near as scary as the old one.
* The Art tower is garbage, a really poorly designed stage that adds absolutely nothing to the game (except a good remake of the track sinking old sactuary). Should have been removed before the release.
* Tower of Ruins is the new stage I hate most of all, sooo long, confusing and boring, so many platforms that break under your feet...the whole level is just an endless trial & error, where you fall to through the floor over...and over...and over...until you turn the game off. This is actually where I bailed the last time about a week ago, I lost the motivation to go on (i have finished the entire game before thought, and Henrys quest too).
* Uninteresting charcters and plot. I don't care about this werewolf dude and his friend. I liked the vampire hunter Reinhardt with his whip and Rosa subplot. It had some romance and some interesting dialogue, for instance when Rosa says: "why wont you kill me? arent you a vampire hunter?" or something like that. It had drama.
To sum up, some of the new stages are good, but many of them just plain suck. It's especially funny, since I remember that the jumping control was a big source of critisism in the first game, that they would add EVEN MORE PLATFORMING JUMPS in the new game! Why would they do that? The perfect game for me would be the original Castlevania 64 + the foggy lake stage, the new bosses, the new tower of execution and the new final dracula form.
The story with Rosa and Reinhardt reminds me a lot of Devil May Cry 1 and what happens between Trish and Dante, where SPOILERS: When Trish and Rosa meet Dante and Reinhardt, they come across as friends only to betray them later, but Dante and Reinhardt are unwilling to kill them after fending off their attacks. Later, both Trish and Rosa show sympathy for being spared and sacrifice themselves to save Dante and Reinhardt by jumping in front of their puppet masters attacks that would've killed Dante and Reinhardt, Mundus' laser thorn eyeblast projectile attack and Death's flying sickle attack, then later on are reincarnated as normal humans and given a 2nd chance at life
The parallels between Rosa and Trish are so similar it makes me wonder if the writer for DMC had just finished playing C64 as Reinhardt before writing the plot for DMC lol.
What I like about Legacy of Darkness over C64 is that if you do hate Cornell's game, which includes what you mention about
- the Castle Wall (sorta agree)
- the Villa (totally disagree with, except hedgemaze chase being much less intense),
- Art Tower (mostly agree with but not that it should've been omitted),
- Tower of Ruins (mostly disagree with, plus the sign in the basement tells you to stay along the edges of the rooms so the floors won't collapse, but the 2nd part of the stage is mostly as you said trial and error but if you keep hopping you won't fall even if the section of the stone bridge breaks underneath you)
- For the platforming, i think with the better camera and controls that the platforming in the game is great. Even if you screw up a jump, the game is extremely forgiving in that as long as you're holding down the jump button your character will automatically grab onto the ledge of whatever you were jumping for so long as you are anywhere near it. I rarely fall to my death in the game unless i'm jumping and get hit by something like the rotating spiked beams in the EDIT: Duel Tower (not Tower of Execution lol)
For your last paragraph, LoD contains what are essentially Carrie and Reinhardt's games from C64 but with the redesigned stages, the Foggy Lake stage, Medusa, the Arachnid Queen, the better camera, better controls, the new subweapon system and Reinhardt's whip upgrades. So if you don't like Cornell's game or his exclusive stages, you can just play Carrie and Reinhardt's games once you unlock them and think of Cornell's game as just being a bonus.