What type of thread is this? Poseidon wins with incredible ease, hell, he annihilates Aquaman into nothing, literally.
Poseidon in his weakest form was casually destroying Gold Cloth and tossing the Bronze Saints around (who were already above the Gold Saints by then) with his telekinesis and thoughts.
Two Minor Gods and Seiya himself stated that his cosmos was larger than our universe (more so, was encompassing the Universe) all because Poseidon was pissed off.
A Poseidon without his fullest power used his divine power to protect Gold Saint's armor from being erased by Hades' Hyper Dimension (larger than our Universe) just with his thoughts and telekinesis.
He reduces Aquaman into nothing before destroying the rest of the Justice League.
@Supreme Marvel: That's like saying Ganondorf can't be defeated by Z because only the Master Sword can hurt him, even though we know that's a NLF on how strong the divine protection of the Triforce goes.
No it's not. They show it in the comics. They've destroyed them, yet they kept coming back. Only way to kill them for good was to combine 2 colours of the spectrum.