My girls are, I guess you would call it, "well-rounded"... They adore My Little Pony, and mermaids, and fairies, and princesses; but, they also really love super heroes. Their favorite show right now is a cartoon version of the Avengers, and they watch it at every opportunity. They have a special dance they do during the opening credits, involving many "X Jumps", where they crouch down then jump up with their arms and legs flung out like an x, and they do all the poses and moves that the Avengers do (usually while wearing, in the case of Miss M at least, multiple tutus). We have lengthy conversations about all the villains and aliens and heroes. It's nice. Nice to have some counterbalance to all the fluffy princess stuff. Miss M summed up her favorite character this way:
"Captain America lets go of his shield then everyone falls down."