Wonder Woman's strength isn't on planetary level. She has no strength to say she is even close to the heavy hitters. She would at max come in to 1/3rd of the weight of the earth, and that is lifting strength. Her punches would not hurt BRB and Surfer and Gladiator.
Surfer would obliterate Diana in a few seconds. His cosmic awareness would give him the ability to know her strength's and weaknesses (though would not be needed). His durability is enough to tank anything Diana throws at him, considering that he isn't getting hurt by World War Hulk while weakened, and fight evenly against Thor, who hit's harder than Superman and Diana. Then he has matter and energy manipulation, forcefield's, energy projection, can increase his physical stats and more.
Beta Ray Bill rips out core of stars, destroy planets with a punch. Stormbreaker gives him the ability to control the weather, manipulate matter and energy. It gives him the ability to go intangible and become invisible. It gives him energy projection. He is durable enough to take planet busting hits without a scratch (except for his suit getting torn).
Quasar would lose if they had a slug fest. They won't. The quantum bands would give Quasar the win. His constructs is not only more potent than a green lantern's, but his force fields are nearly indestructible. It took people on Thanos level to destroy them, and planet busting attacks have failed to breach them.
Ronan's weapon is what would give him the win. It has matter and energy manipulation on par with Stormbreaker. His forcefields are strong enough to tank hit's from planet busters. He is a much smarter fighter than Diana, and would never try to fight her h2h. His weapon can do more than enough damage to Diana while the only way Diana is winning is if Ronan decides to fight her h2h.
Gladiator would win simply because he is durable enough to tank her hits and strong enough to KO her.
Nova would win only if he has world mind and the full nova force. If not, he loses. With it, he would be too fast and World Mind would already have a way for him to finish her off before she can think of what to do.
As for why Surfer would beat Superman:
Superman would need to power up for him to even be able to come close to physically hurt Surfer. He would be below planet busting on a normal day, and power up to even come close to that. While he do that, Surfer would have already figured out what he needs to do to beat Superman.
Superman have always been portrayed as a guy that had the potential to greatness but isn't there on a regular day.