The Joss Whedon List
The best written, most intriguing, multi-dimensional, least-damsel-yet-still-not-100%-infallible, coolest and ass-kickiest female characters I can think of... and yes, a few of the more physically attractive to my eye as well, so far as sprites and polygons and cosplayers can be, though mostly as a bonus to their other traits. This isn't a "hotel room" list; these are the ladies you'd like enough to bring home to meet your folks, or the ones that might pass the How I Met Your Mother "front porch test".
There is no particular pecking order here, aside from "Chie > everyone else." Naturally. You know what site you're on. You know the score.