For a Pro product, the Surface is far superior. It runs a full OS thus can handle Pro software. I'd like to see how many iOS 9 Apps have feature parity with the desktop versions that can be run on a Surface.I think, from what I've read, folks are giving Microsoft too much credit, and underestimating the potential of IOS 9.
To claim that neither side of Windows 10 is refined enough is just sheer nonsense. I'm not convinced you've used Windows 10 on a tablet device or even a desktop one.