Which super-strong superheroes would win in a fight with Super Holly? Superheroes fight a lot when they first meet. I am assuming that neither Holly or her fighting partner is under evil mind control, else the one not under control wins.
Wonder Woman: WW wins. Diana has many decades of warrior training, she HAS to win!
Supergirl: Probably Holly, provided that incarnation of kryptonians does not have them pushing planets out of their orbits. Holly is a better hand-to-hand fighter, and she is older and tougher, but she would feel awful about fighting a young girl.
Superman: Superman wins. Why? Because he’s Superman.
Power Girl: They would fight, but verbally.
Power Girl (pointing to Holly’s chest): “Copycat!”
Super Holly (pointing to Power Girl’s chest): “Get a logo!”
Thor: Thor would call it a draw once Holly picks up the hammer. She is worthy, although she does not think so. She would give it right back to Thor, of course. She has issues with being called a goddess: them’s fightin’ words, and that would likely be the cause of the fight in the first place.
The Hulk (Bruce Banner / Hulk Smash version): The fight would go like this:
“HULK SMASH YELLOW HAIR!” Big green fists hit Holly: THOOM BAM BOOOOOM!!!
Holly staggers. “OUCH! Oh yeah? Well, Holly smash you in the schnoz!” Super boxing fists belt Hulk’s nose: POW POW POW POW POW!!!
The Hulk staggers. “OW! YELLOW HAIR HIT HARD! LIKE STUPID ARMY GUNS FROM STUPID ARMY MEN THAT ALWAYS HOUND HULK! MAKE HULK MAD!!!” The Hulk raises his fist.
Holly grabs that big green fist with her super-strong blue telekinetic fist. “Tell me about it! Stupid paparazzi hound me! They zoom stupid telephoto lenses on my chest, and when that gets on the six o’clock news, supervillains laugh at me for days! I HATE THAT!!!”
The Hulk lowers his fists. “YELLOW HAIR HOUNDED TOO?”
Super Holly lowers her fists. “Yeah.”
The Hulk says, “HULK NOT MAD ANYMORE. YELLOW HAIR KNOW HOW HULK FEEL.”
Holly smiles and holds his hand. “Poor thing. Wanna talk about it over coffee?” Holly flies the Hulk to the nearest coffee shop, where they quaff gallons of iced mochas and talk and laugh and Tony Stark pays the bill because the Hulk does not have a wallet, and because Super Holly’s cash, not being from the Marvel Universe, would not be legal tender.