when Seth Lover invented the humbucker, his primary aim was to eliminate the hum but its conception led to a cancelling of some top-end frequency too. this is a major diff between a single coil pickup & a humbucker. for crisp, jangly tones, the single coil would excel. if you tread the less trebly path, the humbucker would be your cup of tea.
one would argue that a split humbucker would eminate single-coil type tones- yes but not entirely. effectively, the humbucker & single coil each offer a different tonal spectrum. an apple cannot outperform an orange albeit both being fruits...