Does Vision have any strength feats at all? I mean we can speculate given the feats we've seen from Vibranium that someone with Vibranium muscles would be extremely strong but there isn't much to go off.
Ok here's the thing, their speed is actually almost equal. Both Daredevil and Punisher (especially after Punisher's second season) have a ton of crazy aim dodging feats. But Ozy is still faster, since he can actually catch bullets. The problem is their strength and durability is nowhere near equal.
Ozymandias took hits from an enraged Nite Owl, who despite @mister_surreal's claims of being "out of shape" is strong enough to easily break bones with a single punch. And just look at his ridiculous strength.
How do people not know at this point that Thanos only used the gauntlet when the stones were glowing? The directors have stated that numerous times, and have specifically stated that he beat Hulk without any help from the power stone. Base Thanos is still Hulk level in strength and has durability enough to tank some crazy firepower. Aquaman isn't even close to his power level.
They are both glass cannons, so it just depends who hits faster
Mera is Atlantean, her physicals are much greater than Wanda's. This is what would give her the win I think since she could stand up to Wanda's attacks for a bit.
I mean she does have enhanced durability that's a good point so I probably shouldn't have called her a glass cannon. But that said, she doesn't have the durability to stand up to an attack from Wanda so it still just depends who hits faster I would say.