To me, it appeared that Thanos would have lost to a depowered Tyrant much quicker than he would have lost to a full power Odin (in Asgard and mad because he thought Thor had been captured). Neither fight actually ended in Thanos losing but it was headed that way, and Thanos looked more busted up in his fight against Tyrant (his shirt was almost gone and his headpiece got disintegrated; whereas he was still relatively in tact at the end of the Odin fight).
Now it's just a matter of determining how much more powerful a full powered Tyrant is compared to a depowered one. If we say the 7 gods on the team are relatively equal to each other and if we also say a Full Powered Odin = Depowered Tyrant then a Full Powered Tyrant would have to be at least 7 times as powerful as a Depowered Tyrant in order to win. But fights aren't an exact science because even lesser powered characters sometimes find a way of defeating characters who have more power than them.
IMHO Tyrant would win by BFR via Dimension Dump into Asgard and destroying the Rainbow Bridge. 🙂 😄
Don't know if I'm remembering this correctly but a while back Odin/Zeus led an invasion of the Eternal's home. Zuras was there along with Ikaris, Thor, Hercules... etc. Zuras exceptionally powerful for an Eternal and he holds the 'Skyfather' position amongst the Eternals but he's not officially a Skyfather.