Luminara Unduli & Qui-Gon Jinn vs. Kit Fisto & Aayla Secura

Everyone is in their prime (bar Qui-Gon Jinn, he's as of The Phantom Menace). Battle takes place in the Ancient Abyss on Felucia.

Qui gon and Fisto are more or less on the same level, but Unduli beats Secura and gives team 1 the win

Fisto's probably more skilled than TPM Jinn overall but not by much. I would actually say Luminara and Aayla have comparable Saber skill but obviously Luminara is more polished and experienced. Fisto > Jinn and Luminara > Secura, but I reckon Unduli takes Secura out before Kit beats Qui-Gon.
Team 1

For what it's worth Qui-Gon is noted as a "highly trained jedi master" in Ultimate SW.

Qui Gon is just a tired old Master. Nothing more, nothing less.

T 1

Qui-Gon can match Fisto and Luminara can beat Aayla. Team one.