Fundamentally, the difference between creationism and science is that the former is simpler. Thus, it is more likely to be espoused by the uninformed, the simpleminded, the intellectually idle. Comprehension and evaluation of scientific evidence about something like evolution is really very hard work, and is unlikely to be done at the highest level by lesser intellects. The simplemindedness of the creationist's view may be analogized as believing that a car moves forward as the result of pressing the accelerator, while blanking out from one's mind the possibility that there is anything between the accelerator and the wheels.
I believe that the promulgation of analogies of this nature may do more for the common people's understanding of the differences between creationism and science than do highly intellectual, complex scientific statements.