^You would not be the only one. If I had to rate their popularity based on the fans' perceptions of their attractiveness, the ladies of Firefly would probably go Kaylee, River, Zoe, Inara. At least, that seems to be the reactions I've seen to the lovely ladies of Firefly.
Then those fans are clueless. LOL
Inara (Morena) is first.. the rest can fight it out after that..