It's a fair guess that having hot chicks in them helps conjure up a huge fanbase...given the true or not myths about
SciFi fans being nerdish and sexually frustrated virgins. However it would be nice to see a show getting popular by actually being good TV...and with hot chicks.
Take Joss Whedon's
Firefly: absolutely brilliant drama and action plus a bunch of verrry interesting women. Tadaa.