Unlike ferrets or other animals where one gender can be more aggressive than the other - both male and female Sugar Gliders have equally sweet temperaments. Just like human children, every baby has its own unique personality - and (again, just like with children) how much time you spend with them when they're young determines their temperament much more than gender.
Having said that, two or more boys (or girls) will usually get along just fine in the same cage; simply because they are instinctively “colony” animals and LOVE having the companionship.
...just check out these two making their “getaway”.
Practically speaking, when males (which have not been neutered) reach maturity, they will occasionally “mark” their territory (like almost any animal). However, if they are being fed the correct diet, this normally will not result in an offensive odor - see free report on "feeding".
Alternatively, female Gliders will “cycle” twice a year, but there normally aren't any outward manifestations at all. In other words, the only ones who will know what's happening will be the Gliders themselves. :-)