For me it's hard to enjoy a game with technical and gameplay flaws that also has a really simple storyline (boy wants to save pretty girl).
Then, good sir, it is not your game. But to be frank, just about every story on earth has a "really simple storyline", including many of our classics. Ex:
Don Quixote: Dumb guy thinks he is a knight, does stupid things.
1984: The man is keeping us down.
No Country for Old Men: Find money, run away from bad guys.
Final Fantasy (1-99999999999): SAVE TEH WORLD (OK, so Final Fantasy never has a good plot. But you get the idea.)
That doesn't mean that these aren't enjoyable storylines, and they are. The authors' stylizations, and the books' specific concepts (not overall, generic ones like those mentioned above) turn them into enjoyable reads. The same may be said for SoC.
- Things like the voices, the skin tone: these are just minor cosmetic details. Why the boy skin tone changes but the boy doesn't improve his climbing skills? (given that's the main thing he does in the whole game). Evolving the world and the character is nothing new in games, so maybe you like more SoC because it's more subtle, no idea.
- Things like the "way the boy handles the sword (completely untrained)": this is trying to explain a game/technical flaw or to explain something that doesn't exist. The boy uses his sword perfectly when he stabs the Collossi, he is just unable to use it with his feet on the ground (which doesn't make any sense, and more if you take into account his impressive physical form, archery and riding skills...).
The changes in skin tone and other features on the boy's body show the slaughter of the Collossi as slowly draining away at his life. His climbing skills -do- improve if you know what you're doing, but that's honestly a little rediculous to assume, because nobody really improves at something as rapidly as characters in a videogame.
And stabbing perfectly on the collossi? Err, he grabs it with both hands and shoves. Either one of us could have done the same. As you said, he already has a good form, so raw physical strength is not an issue. He isn't good with the sword because he stole it. The bow and horse most likely belong to him.
The actual plotline of the game is fairly standard, and one could even call the Collossi giant walking plot-coupons. However, the methods used to convey the plot are not only interesting, but are something that could only be done in a game; SoC could never have been written as a book or a screenplay. And that's what makes SoC a good game.
Honestly, I doubt this. Anything that you said was interesting about SoC storytelling is totally passive and out of the player control, so it could be portrayed perfectly on a film.
If it were a movie, we'd all be as bored with it as you were. Watching someone run up and stab 16 (I think it was 16) giant walking things would be cool at first, but really repetitive. Further, as a player you explore the character in a different way than a moviegoer. If someone stands on his horse in a movie, it's pretty cool, but if you're fiddling around with your controls one day and get your character to stand on his horse, it's an entirely different feeling. "**** YEAH! I CAN STAND ON MY HORSE!"
Ultimately, I think you played through it too much like one plays through any other videogame. And ultimately, I'm sure you think I'm just a retarded fanboy Perhaps we'll have to agree to disagree on this one.