I love minimates because I am a girl. Sure, other companies make girl figures, but most look like dudes in drag (or are that semi-creepy anime "please, sir, I am here only to serve you"). Minimates make girls look like girls -- sure, some are "party girls" (because hey, some of them are ) -- but you can always tell that they are girls.
Besides, what other company has made Pepper "Rescue" Potts AND Wonder Woman (& made them cool as hell to boot)?? The answer is none -- and as a girl living in a man's world, this is very important.