Karnak, Moondragon, and Gamora don't belong on that list. Karnak's record is almost all losses. Gamora can't beat Winter Soldier. Moondragon beat a weakened Cap, so the feat is wanked a bit more than it should be. And she hasn't been written like that in the last what....30 years? It's time to let it go, isn't it?
I'd argue similar for Mantis tbh, but folks get touchy about her. I will grant her this: She suffers from being in space -- most of her opponents are no-names so she it's hard to gauge her. Plus, she has other powers, so those get focused on sometimes. She did recently beat Karnak I guess, but also everyone beats Karnak.
Either way, there's just far more relevant fighters to consider at this point. Captain America, Black Panther, Wolverine. Heck, Black Widow got the 'ol movie upgrade and stalemated Elektra. She's definitely more relevant than Karnak and such.