I prefer Thor Girl.
Because she looks very fierce and like a hot girl. She has the power of god with a hammer that can flash your jolted with electricity.
How about Captain America (girl version)?
She looks very patriotic and appear to be serious with any decision that she made. Do not mock her feelings if you want to live long.
Iron Girl? She need recharge her power, otherwise she has no energy to cheer you. Chill…!!!!