Princess Princess,
Story:
The story is interesting... Makes me wonder if an all boys school actually does that... It's an interesting storyline but I really can't complain. Humor, humor, humor is basically what this anime tries to get you with. It does a good job, and it compensates for the man on man atmosphere. If your looking for some shoujo-ai you will be sadly disappointed.
Art:
Art is good, no repeat scenes... thank god.
Sound:
Sound is good, no problems. Character voices are perfect.
Character:
Character's were great, all with individual problems, while caught up in a mess of school activities. Development was great, and you'll come to like maybe even love the characters :D
Why did I like this anime?
It was funny, and a good breather between serious anime's (if you like more of the drama/sad type animes). However I was GREATLY disappointed there was no shoujo-ai between a "certain" two characters (once you see it you'll understand). The manga creator was "advised" not to make it into a shoujo-ai manga.