eh went to both, and personally i fucking hate uniforms to high hell, i get so damn hot wearing anything but my clothes, i would sweat all over the place and on my tests because my taint felt like it was in an oven soaking up all the heat, so no, fuck that.
i'm not saying this is true everywhere, nor is my opinion worth more than anyone elses, but i've never seen someone actually get bullied for their clothing, if your that damn shallow about it then you're a douchebag, and if you let some random person saying "nice shirt, where'd you get that, at the toilet store!?!?*snickers*" offend you, then you probably needed that to get some thicker skin.
I know a guy, known him for about 10 years now, he's worn nearly the same damn thing every day of his life since then, and probably before then too, a *insert plain color here* dickies shirt with levi jeans and boots on, never seen him wear anything else, not even on graduation day, and i've never heard/seen anyone pick on him and he's getting along just fine being that way.
for personal reasons, i say fuck no to uniforms because they cause more problems than they are worth for me, but i'm not saying uniforms can't be used elsewhere, by all means, private school and british schools, do as you please.