Not only does Jaina have a pretty resolved character, but her telepathic resistance is beyond what Zannah could hope to break with her Sorcery.
Jaina is both more skilled and physically superior to Zannah, and her unorthodox form would aid her in breaking Zannah's Soresu.
Jaina wins every time. Zannah just has no way of winning.
Not really, you resist Zannah's attack through sheer will and purity of spirit. Jaina has a ****megaton of angst and trauma for Zannah to draw on. She should be vulnerable.
Resisting Abeloth, which never happened. Something about a nexus. Jaina has a few decent telepathy feats, but she can't resist Zannah.
Darth Zannah have the raw power and skill to contend with any opponent on equal footing, if not better. Same is true for Darth Nyriss. In-fact, Nyriss might be the most competent swordsman in this contest.
Moreover, Team 1 members are powerful Sith Sorcerers and have both conventional and non-conventional Force abilities to boot.
I am willing to acknowledge the possibility that this is a good fight for either Team in a neutral setting. However, Team 1 would have decisive edge in a setting strong in the Dark Side.