I don’t use either myself—my studying activity is 90% searching/reading, 10% coding/LaTeXing, so I never really bothered to optimise my computer for keyboard control (whereas I’m always looking for the newest and most feature-rich mouse and make large use of gestures and button combinations). But I know a lot more people who swear by vimperator than people who actually use vi.
I don’t use either myself—my studying activity is 90% searching/reading, 10% coding/LaTeXing, so I never really bothered to optimise my computer for keyboard control (whereas I’m always looking for the newest and most feature-rich mouse and make large use of gestures and button combinations). But I know a lot more people who swear by vimperator than people who actually use vi.