Diana has gone up against multiple teams. She held her ground when she was blind against the Justice League. Sure, they weren't going all out, but she still proved why she's a top dog. On top of that, she was holding her on against multiple villains in WW annual 1 (about two years ago)...
Dianas has the strenght advantage, the skill, the weapons and speed. She's tagged Wally, Zoom, Jessie Quick, Amazo and Cheetah all of whom are far faster than the opponents she's facing.
She's stalemated Superman, Captain Marvel, bested Etrigan, Powergirl, Supergirl, Evil Mary Marvel, held her own against a Doomsday clone, defeated Genocide and Achilles.
Although, she'll duke it out, I wouldn't be surprised if Diana decided to use her weapons. She'll be able to lasso half of her opponents, use her tiara as an offensive weapon and might fry all of them with her vambraces. She has soo many options, but people underestimate her and don't know her true potential when written correctly. So with that said, Diana takes the majority.