STREET SEENI like LA because outfits don't have to be as functional. In San Francisco, you're always worrying about whether you'll flash someone disembarking from your single-speed, about what exactly is going to happen to those white platform sandals inside the Montgomery Street BART station. Oh lord, sandals in San Francisco?
In Los Angeles, you can wear whatever the hell you want. After all (just to be SF-bitchy about it), they don't dance down there, they certainly don't walk, and you probably won't broach the waterline at the beach, so the gold braid on your swimsuit? Appropriate, necessary. (Just take it off when you go in the pool.) In Los Angeles, you are allowed to dress like you are at the white-hot center of the hip universe, free of earthly fetters. Buy the dress in midriff.