Admittedly I can't comment on how others drive here since I'm just guessing; I only know about my results, and automotive publications that review both cars seem to always find in favor of the Prius in terms of mileage. I remember Edmunds getting 42.9 mpg in a 2006 HCH and 48.3 mpg in a Prius in an extended test, and Consumer Reports averaged 37 and 44 mpg respectively.