Well I've been reading web comics again and have found a few with uber fems. One of them is Dragon Mango, Mango is a half dragon slayer (Not a trained human an actual species though they have a secret) who is also very diligent in her practice and remarkably strong. Another is a female Elf who underwent some training from an old sadistic master swordsman, suffice to say after going through that hell she's quite strong.
www.dragon-mango.com/comic/chapter02/dm02-63.htm
www.dragon-mango.com/comic/chapter03/dm03-20.htm
A more serious comic is wereworld
Anika is a werecat (hardly a rare thing in that world) but suffice to say in her were form she's quite strong. Far stronger then what most expect, there is also a female dragon that takes on human form while traveling. In her human form she's quite strong as well.
wereworld.comicgenesis.com/d/20060709.html