I was a FIRM believer in owning female dogs (I, myself, am female) and then, I had two male dogs. Both of which have bonded closer to me than anything I could've imagined.
My females were obedient and hung on my every word, but the current male I have (Beau) and a male I've had in the past, (at the risk of sounding egotistical) in essence, worship the ground I walk on....I can do no wrong in my MALE dog's eyes.
In MY opinion, my two males were also FAR more affectionate than any of the females I had ever owned (both GSD and other breeds) and much more in-tune to my emotional state. I loved my females, don't get me wrong but there was never the "closeness" I find with Beau.
Just my own experience, though.