Yeah, this one was probably more obvious. Still, it's got to be mentioned.
What drives me to this game is just the experience on the whole, and there is very little I can point out as being what really sold me on it. For being a Wii game, it still looks amazing, using beautiful landscapes and massive backdrops to make the game look absolutely stunning, regardless of its low-resolution textures. It's soundtrack quite possibly the best I have ever heard in a game, and it always brought out the atmosphere and tone of the game to being much greater than it would have been without the music. The gameplay was also a major plus, having the simplicity of the traditional auto-attack/talent-bar system, but also adding a few features to make it more complex and thoughtful than what I traditionally see in games such as
World of Warcraft or
Dragon Age: Origins.
However, if I were to say anything about what really makes the game stand out, it would be that the developers just put a lot of love into making it an experience you want to continue having. So many things are thrown into the game where they let you know it is unnecessary but just there for your enjoyment. The thing is, doing these things just makes the world come alive more, as if it even needed help given the landscapes and soundtrack. I came to care about the world enough that I just didn't want the game to end (brought it to 150 hours my first time). It also brought out a greater connection to the characters, from the well-written main characters to the more minor characters, so that I cared about their relationships, their internal and external troubles, and just who they were as people. It helped that all the main characters had their own distinct personality but also was complex enough so it felt like they were actual people, not just someone thrown in to fill a stereotype, and their interactions felt organic and worth your time to follow. Speaking of the characters, they were all fantastic. If anyone can compete with The Prince and Farah in terms of best character in gaming, it is the main cast from this game (the whole cast!), and Egil is actually my favorite villain in any game (even though his nature as a villain is sort of nullified towards the end of his story).
Also, the story tying everything together was truly fascinating. Even though it jumps around a lot, it is actually interesting to go back and see how many end-game plot points there were that were foreshadowed within the first ten hours of the game. It also managed to juggle multiple themes--the nature of time and our relationship to it, the relationship between biological life and technology, transhumanism, and the nature of gods and religion to name a few--while still managing to tie all the themes together by the end. Also, even though the writer had some obvious biases regarding certain themes, most notably time and our relationship to it, it never felt like he was preaching to us, especially since he left some of the more controversial topics, primarily transhumanism and religion, open to interpretation. But it wasn't just the handling of themes, it was just the way the story developed, appearing like a traditional revenge quest focusing on a young, angst-ridden boy before turning into a story about the world itself and all the philosophical questions surrounding it.
In the end, I guess it was really just all the ideas coming together into one wonderful experience that was both diverse yet surprisingly coherent and connected. This game just understood what it was doing and made everything--the story, the characters, the artwork, the soundtrack, the gameplay, etc.--come together to bring out the fullness of that experience.