Silver Surfer
Beta Ray Bill
Gladiator
Ronan the Accuser
Quasar (Wendell)
vs
Quantum magic Adam Warlock (Guardians of the Galaxy)
Moonstone with 2 x moonstones (Thunderbolts arc)
Johnny Storm with Invisible Woman's powers and made Herald of Galactus (from the Fantastic Four arc a few years back)
Invisible Woman with Uni-Power (from mini a few years back)
Super Skrull
Yeah, interestingly enough all they did was brawl. Sue's force fields could have done some crazy stuff to him. She was about equal to Glads until the end when she knocked him a good one and told him to just give up already. She also shielded (IIRC) an entire coast from a Tsunami.
I'm thinking a fully unipowered Sue would beat Norrin's ass. Which is ironic because it was Norrin who ultimately helped to restore the unipower to full power. But I'm not sure if the op is allowing full unipower, or the gimped version that Sue had.
Actually, the creature fed on energy and was strong enough to be able to subvert an entire alien crew to his will. IIRC, I think it was also his power that allowed them to capture Uni-Power Gladiator by draining him on his energies.
i don't think she did all the stuff that Zemo did with two moonstones, but she had amped versions of all her powers.
She had very high strength, durability, withstanding surprise energy attacks that wrecked those around her. She walked through heavy radiation without bothering to phase, saying nothing bothered her anymore. She displayed powerful energy blasts and shields, ability to manipulate energy "across the spectrum", manipulate gravity and gravimetric waves, "teleport" by gravity shunts through hyperspace (including other people and parts of buildings), easily blasted down most of the middle to lower level Avengers, holding people in stasis fields, absorbing energy etc. She was listed as a high herald in the early tiers system.
The amping of people with super powers thing was only just for that particular arc. Theoretically It can make a normal human more powerful then any herald if it's necessary.