I've only played through Water, Death, Life (well, half of it) and Earth. I'm not sure what's my favourite. They're too unique to compare. I guess I'll just comment on my favourite parts of each, then. Eh, I just wrote these in the order I finished them.
I ended up getting the dark water ending first...
...Which I guess I had coming, accusing him of lying like that. Anyone would snap after all those centuries of working and planning only to be rejected so suddenly. Dark!Zareh is terrifying and yet very, very sexy. I can't help but wonder exactly how long that situation would continue. Even if Mina sincerely started to believe him, would Zareh even notice/care anymore? Thinking about that going on for eternity sends chills down my spine.
The light ending was absolutely beautiful. I was thrilled that Oryon died, even though he seemed way too smug whilst dying. Even their happy ending involves so much pain and sadness, but I suppose it was for the better. I also almost wonder exactly what kind of "dark secrets" Zareh has, but then again ignorance is bliss. I liked the water path because it explains the most, and it's beautiful in a way I almost can't understand.
Death.
The light ending was absolutely beautiful. I was thrilled that Oryon died, even though he seemed way too smug whilst dying. Even their happy ending involves so much pain and sadness, but I suppose it was for the better. I also almost wonder exactly what kind of "dark secrets" Zareh has, but then again ignorance is bliss. I liked the water path because it explains the most, and it's beautiful in a way I almost can't understand.
Oh ho ho ho, I absolutely adored this path. Maybe it's the evil overlordess in me. Lately, I've taken to sending them off into various fates to see their reactions. Aurelius and Caius are tied for the best reactions. Poor Aurelius, but I can only hope that Mina at least matched your expectations of "fun". I also love how he automatically assumes that you also have Cascade. Caius is interesting because he actually likes what's going on. So of course my first reaction was to throw him back into the streets. >:) It was also interesting that if you let him join you, he actually does things. Like pick out her clothes. (Which also makes me wonder if he or Zareh had anything to do with the outfits Mina wears in the end CGs... I'm thinking about this too much.)
The Life ending was nice. It was a major change after the Death ending.
Rune doesn't stand out to much in my mind, other than the pretty sparkly/firey bit. It was really the other characters that stood out. Varian and Aurelius had a very natural dynamic together. And somewhere along the line, I decided that Caius wanting to kill Oryon so that he could kill Mina and Rune was really sweet. "Sweet" isn't at all the right word and I have no idea where it came from, but for some reason, it stuck. In the "True" ending, his suspiciously specific-while-avoiding-the-actual-concern was a major give-away to me about what was going to happen. I don't hold the "True" ending as the "truth" even though everything's wrapped up. You never find out "why" everything happened in the first place and I think it would make her much more happy to return to her original state knowing her past.
I only did the Earth ending because some of the other people's comments persuaded me to. After the other endings, I wasn't really sure how I saw Caius. I brushed him of in the Death and Water paths as being more psychotic than effective. The Life path changed that a bit, because he actually was rather good at what he did. So I started the Earth path and it was really...cute. Light-ending!Caius is a lot fluffier than his dark-ending counterpart. (I just used "fluffy" and "Caius" in the same sentence. I'm going to die. ;A;) It was a bit annoying to me how naive Mina was about picking this path. I know I'm rather jaded, but she really should have seen at least some of that coming. Cascade was also a really interesting character. I love how she follows her morals and adapts to the situation.
I was surprised how much I got into this story, even after I got unnerved at ending up where I did first. Thank you, by the way for that walk-through. It was extremely helpful. Oh,and for some reason, every time Oryon flails about a lot, it makes me smile. Unfortunately, he likes to move around a lot, so I ended up grinning stupidly at my laptop a lot. ...My face hurts. I guess that was my closest-to-complaint, other than some weird grammatical things. Anyway, it was a great game. I really enjoyed it.Edit because I didn't want to double post. I've finished the fire path now, which I really didn't feel any particular way towards. Of course, accidentally getting that one instead of the air path like I was shooting for might have clouded my thoughts. I guess I'll just use the "enough monkeys with enough typewriters" theory and keep picking different things until I stumble upon the right answer.
I knew The Air path would be difficult but not this difficult~ 
for the Water path. But great suspense. 
