Jaina Solo, Darth Caedus, Anakin Skywalker, Luke Skywalker, and Cade to a lesser extent, these guys are pretty damn powerful, everyone else in supporting roles could be enough to give Team 1 a challenge.
It helps that Caedus, Anakin, and Luke can take just about anyone on Team 2, barring Anakin and Caedus against Valk.
I feel like the weakest 5 or 6 on team 1 will just get destroyed by the 5-6 weakest on team 2:
Team 1- Leia, Anakin Solo, Kol, Nat, Ben, Jaina.
Team 2- Arcann, SF Malak, Thexan, Senya, Lord Scourge, Dramath (lol)
I'm pretty sure SF Malak alone could handle about 3 of them. Arcann the other 3.
As for the top 4:
Team 1- Luke, Anakin Skywalker, Darth Caedus, Cade Skywalker
Team 2: Tenebrae, Revan, Vaylin, Outlander
the most controversial one is Tenebrae vs. Luke (which I personally think Tenebrae wins), Anakin vs. Outlander is very close, and Vaylin bitchslaps Caedus while Revan embarrasses Cade, or vice versa. Bad look all around for team 1 imho.
I think team 1 is top heavier while team 2 has the advantage for the middle (and the bottom tier like Ben or Dramath are irrelevant). But going by vs. debating scaling frameworks should someone like Arcann even matter if trying to help the Outlander vs. Anakin, if Anakin is performing at his RotS-Sidious tier level? Of course this is assuming we buy Skillz's preposterous framework where the Outlander is like comparable to Yoda - that aside, even if Valkorion can hold up long against Luke, Anakin basically has nobody who can concretely match him.