They're mostly equivalent, but I think KDE has the edge when it comes to customization, included utilities, and advanced features. The Apple/Windows comparison is not limited to their look and feel, it also applies to the philosophical differences between the Gnome and KDE teams. If you plan to use SteamVR, KDE is supposedly better for that specific use case, but I can't personally verify that.

The feature sets and quality of both DEs are constantly improving, so a comparison from 6 months or a year ago could already be outdated. I haven't used Gnome in quite a few years, so I'm basing this entirely on what others have said about it.