Which school uniform from ( Anime / Manga of Choice ) do you like? Oh yeah,note that you can include their P.E (Physcial Education) Uniform and Club Uniform if applicable.
Personally...
Male School Uniform of Shakugan no Shana
Female School Uniform of Clannad
Female School Uniform of Air
Male School Uniform of Code Geass
Night Class Uniform of Vampire Knight
Proably should edit it...after watching more school Animes
Male Uniform of Code Geass
Male Uniform of Night Wizard
Female Uniform of Hayate no Gotoku
Male and Female Uniform of Chrome Shelled Regios
Military Student Uniform of 07 - Ghost
...I don't think I can remember anything else :P