I would say exhibitionism is mainly a womans thing, while voyeurism is mainly a male thing.
Of course there are lots of men in here who want to show off their knob, but in general, when it comes to showing off and flashing in the real world, it is usually the woman who do the most showing off. My wife and I used to go to the amateur strip competitions and you would get a dozen woman up on stage but when it was the mens turn it was usually only 2 or 3 drunk lads.
Same with showing off in home girls sites and magazine, plenty of woman sending their pics in, but very few men.
On the other hand, woman are generally not into voyeurism. Maybe there are some genuine woman in here who like it, but in the real world, no where near as many woman check out mens pics in here as the other way around.
Of course, plenty of woman enjoy it when male strippers come to a party every now and then, but that is more a fun thing.