I don’t own a unit so I wasn’t able to compare them side-by-side, which would be essential precisely because they measure so similarly.
I will say, for my taste Mega5EST has a better approach to bass and isn’t quite as soft/poofy as DaVinci. However, I prefer DaVinci’s approach to midrange as its a little more textured in the upper midrange specifically. Treble is going to be a tossup; I do think Mega5EST with the narrow tips was probably a bit smoother (and that’s what I preferred in my review). That being said, I think DaVinci’s slightly darker overall tilt works better for my taste on the whole.
Here’s a measurement comparing the two.
