my first dog ever (my current) is a female.. I love her to pieces and wouldn't trade her for all the money in the world!!
Yes females ARE moody BUT unlike sassylikemom said.. my Kayah (right now in heat) has her favorite *pink* toy that she humps at like crazy
All of my friends have had or have males.. and they are all so sweet..
BUT the one thing that turns me away from getting a male is his "package" sometimes dropping by for a visit.. I dunno.. it just weirdens (if that's even a word) me out..
So ultimately... it's YOUR decision.. Good Luck