the fructose in whole fruit is delivered with enough fiber that you're physically too full to really gorge on the sugars.

http://www.youtube.com/watch?v=dBnniua6-oM
"Robert H. Lustig, MD, UCSF Professor of Pediatrics in the Division of Endocrinology, explores the damage caused by sugary foods."

that video is over an hour long, but it explains the science of how glucose & fructose are metabolised, which includes how fructose doesn't trigger the fullness response.
(yeah, this guy isn't entirely impartial, but, the evidence really mounts in his favor.)