Of all the titles in the list, I've only really played Scarlet Fate, The Niflheim, My Sweet Prince, Lost Island and My Fairy Tales. I voted for the first two. I was super addicted to SC a long time ago, to the point of screaming best-game-ever xD Its emo-ness finally got to me as I hung around Gentoka, nevertheless I manage to still enjoy it to some extent. The Niflheim is also beautiful and I'm still eager to read it, but I've temporarily stopped for some time, no idea why. I just... I want to read it, but I don't feel like playing it. X__X
As much as I liked My Fairy Tales when I first started, the game seems ridiculous now with all the silly and overreacting characters, especially how they solve the problems in Gretel's route. Not that I'm too bothered by its silliness, the stories are based on fairy tales after all. Also, the MC has a pretty face as her redeeming feature xD
My Sweet Prince is okay romance-wise I guess, but the plot is ridiculous in a different way. The whole bracelet bearer choosing king thing is stupid... At least the princes are sparkling (literally), and for a while I was captivated by all their sparkles xD
I've played through two routes in Lost Island - the officer and the soldier, can't even remember their names now - and I find them so-so. I'm never interested in a zombie setting to begin with, so I'm not too hooked.
I think I've tried Magic Sword...? I remember there's a side character that I like more than any main heroes and that's all. +.+
I want to try some new Solmare games, but as graduation hits I've got my hand full with life issues already, so I'm resisting the urge to dive deeper into the fictional worlds (especially when my current world sucks and I want to escape).