Good advice in the last 3 posts. Working your core really hard on deadlifts will help. If Needsize says that the weighted crunches on a decline bench work, I believe him. Obviously, if you're too fat, you'll never see your abs.
(dogoftheday) "What work out do you think is the fastest way to develop abdominals"
what type of question is that? Hmmm, lets see. Hard work, diet, cardio, proper nutrition, research, education and knowledge. I guess that sums it all up bro...