Ami has, probably, the most interesting personality of the lot of them by really having "three faces" or more rather than just two. We still have some secrets of Minorin though and Sumire is pretty much blank to us so far other than her delightful speech delivery and interaction with Taiga. While Taiga is also interesting - other than her backstory, we pretty much know how she ticks. I'm assuming those are her parents we see in the last ep's previews so more enlightenment to come.
The biggest blank in the anime version of the characters remains Kitamura. I keep wondering if he's got the "white knight" flaw of just being fairly boring as a character.
PS: aieee, Daniel E., where did Valky go? Replacing her with some dancing fujoshi harlot???
