f/f for me as well. I fancy women, and even if I come to see the lees, the lers can be sexy as well and add to the experience, especially if they're just as lacking in clothes as the lees are.
Some males can compensate by bringing their own wit, wiliness, or aggression, but I'm also a stickler for fine hand-work among lers and the long fingernails of women definitely give them an edge there.