i'm blonder than most, and i think it's like anything, some girls love blondes, some girls don't, most have no strong preference.
But, as a blonde man in Spain, Portugal, Greece, anywhere dominated by by brunettes, blonde men and women get an extraordinary amount of attention, perhaps more because we look a little different rather than being particularly attractive. But you'd get women literally staring at you for quite long stretches of time, i found it really unnerving