well most fallout games are male so a little variety would be nice
Every Fallout game I've played has had the choice of male or female character when you make your character.
Fallout, Fallout 2, Fallout Tactics, Fallout Brotherhood of Steel (Xbox and PS2 only), Fallout 3, Fallout New Vegas, Fallout 4.
Aside from Fallout 3 onward, you could choose pre-generated characters or make your own too.
Generally speaking, the Lady Killer/Black Widow perks make female characters the better choice combat wise, since those perks give a bonus in conversation and combat with members of the opposite sex.
Yes, that includes Super Mutants too.