Hmmm, let's see here....
When it comes to gender, I have a tendency to choose female characters, but only if they're pretty. The reason being is that male characters are kinda boring and generic while playing a girl makes it more interesting. In RPGs, I usually limit females to only caster classes while I play males in a more melee oriented class (there are exceptions though, depending on the game and my mood when making a character).
When it comes to "good vs evil" I usually pick good most of the time and only play evil if I'm either forced to (like when playing Warcraft III) or when I bored of playing the good guy or already has completed the good guy campaign/storyline.
In the jedi knight games, I usually always choose the lightside in SP and the darkside when in MP. The lightside story usually has a better ending but the darkside allows me to be more aggressive in MP.
When it comes to class-based FPS MP games like DoD, I usually pick the close-combat SMG wielding classes because I prefer to run in with guns blazing. Long range classes can be fun but my aim isn't always the greatest at times so I tend to stick with "spray and pray" tactics.
The cake is a lie... THE CAKE IS A LIE!!!!!