Data? don't be silly.
As to support, all you have to do is look at pro-audio. There is a lot of movement to Neutrik PowerCon connectors.
Powercon has a better pattern without the ground in between the line and neutral.
The IEC pattern helps suppress ground field to nothing, so it can't pick up a lot, like in Romex. But IEC doesn't really need that. With the IEC the fields extend out oblong directly from center, and pretty far... This can increase hum sometimes, but in general spreads more noise. The line and neutral fields don't really make contact in order to reduce their size. The conductors are inline.
The PowerCon in contrast is in a shape like a triangle so all three interact some, helping to keep the fields smaller.
Furthermore most of you are familiar with how loose the IEC plug fits into a jack, on average. Large cables often yank them in one direction so they are not perfectly straight. Sadly there is no price point where you don't see that. BUT the Powercon is secure, tight fit, with a lock. The actual contact area is larger because of this, and can exert pretty good compression.
It would be nice if you could get a NCF powercon with rhodium coatings. That would be the beezneez. Oh, and it's hard as hell if not impossible to get 10ga to work on the 20a Powercon. You are better off with the beast 32a that cost a lot more.