IMO, compared to all other models QVC uses, Katia, Wendy, and Monica come out on top. Why?
All are very tall, thin. QVC has a few other very tall models, but I think these three have something special going for them in front of the camera...particularly Katia.
Tall and thin models were always used in the past because clothes hangs, looks best on them. They are like the perfect hanger for clothing.
You most likely are talking about Susan Graver. Well, models can make or break the clothing they are wearing. They make her clothing look good. Personally, I'd rather see all QVC's clothing modeled by the old style tall and thin model.
It is a bit much, though, to make such a fuss in front of the other models.