Well I didn't find a poll for them so here goes. Since I would find myself at a dilemma choosing just one I allow up to 5 choices:

Mine are:
She-Ra/Adora (well to me perfect super hero, smart, pretty and caring)
Perfuma (love how she is always happy and made Hordak release her because of all the flowers she spawned)
Mermista (love mermaids and her accent)
Angella (severely underused in the animation but her appearance is great)
Swift Wind/Spirit (well who wouldn't want a winged unicorn as companion and isn't a coward in normal form unlike Cringer)