In terms of sexuality...
Kes by far, she didn't need a Fake catsuit which had padding and a model made for her butt and breasts to look better than they actually were (self esteem issues seven, self esteem)
But Kes, naturally beautiful, nymph like in movement and in personality. A much more real character to connect with.
Here we go, lulz. Lieutenant Lashmore and his hate of the catsuit makes an appearance in another thread.