I do recall them saying that female figures don't sell as well as male figures, but I think it really depends on the character choices. Season 3 Ahsoka in the CW line for example, was an oustanding seller.
BTW I agree on Ahsoka ultimately... I think they dropped the ball there. She was (is) popular, she got a few figures, but none were ever easily available for one reason or another it seemed. I still want a young Ahsoka done realistically.
I agree that character choice is the ultimate factor in who will sell, male or female.
Star of popular EU books (Mara Jade), star of a video game (Bastilla Shan), star of a popular cartoon (Ahsoka)? You'll sell.
Star of Echo base's radio staion (Toryn), star of Jabba's fat dancers (Yarna), star of holding baby Leia (Breha), star of the Jedi Library (Jocasta)? Peg-warmer.
You could say the same about the male figures. There have been plenty of stinkers on the male side as well thanks to their boring status...
I could see Bo-Katan doing well if she had hit when the show was on since she actually did stuff. Satine though, don't recall much ACTION there, just moping with Obi-Wan unless I'm mis-remembering.