Thor & Captain AmericavsTeam Aquaman

Thor & Captain America Captain America and Batman will essentially be immediately defeated. So that leaves Thor vs Superman, Wonder Woman, and Aquaman.

Now, contrary to popular belief, Thor has many ways of surviving this encounter, and many ways of defeating this band of heroes. For starters, if Thor gets into too much trouble, which I highly doubt will be the case, by merely whirling Mjolnir at a certain prescribed speed, Thor can always just cause a dimensional disruption around himself, making it impossible for his opposition to break through, as seen in 'Journey Into Mystery Volume 1 #112, Page #5' when even a savage Hulk couldn't break through. This will allow Thor time to come up with a plan on how to defeat his opponents, or to just get a breather.

Now, Thor has many ways he can actually defeat these heroes, but the main one to me that seems the most plausible is banishment. Thor can banish these heroes beyond all time and space by using Mjolnir to place them within a universal infinity vortex, which is a faster than light continuum that causes cataclysmic displacement.

Team Aquaman When Superman and Batman battle Mighty Thor, Hulk, Iron Man and Captain America the Dc heroes have 158 votes versus 540.
Lets be honest this is votes because of preference and not logic.
This battle is the opposite and of course the Dc heroes win this time, Captain America will be destroyed.
Mighty Thor may not defeat Superman, Wonder Woman and Aquaman at the same time.
No Batman is no threat to a warrior God.
But he is Batman !
Perhaps Superman and Batman will be defeated and knocked out even killed.
In the end probably Wonder Woman who got no weaknesses like the Kryptonian will be the last standing together with Aquaman.