IMHO it's still up there. I don't know about the new ones, but I had a 2015 at my previous place of employment and Windows 10 on BootCamp is a very nice experience. I still haven't seen a laptop from "PC manufacturers" that comes close. I haven't physically used a SurfaceBook though.
The surface is nice, but it's a very different experience from the older, more solid macbook hardware. Most of the complaints about the new directions for macbook hardware (too light, not enough material, weird inconsistencies, and sacrificed keyboard mechanics) also appear on the Surface
The Surface Pro, yep - the Surface Book on the other hand has pretty nice keyboard, and a fantastic track pad (just as good as that in MBPs). My partner owns one (after I recommended it) - they're great laptops... and tablets to boot!
That's for recent models then? When I had it (around 4 years ago) it was ok, but lacking on the driver front: fans were running high for seemingly no reason, battery life was worse than under OSX even when idling (could be windows itself though I doubt it) and one of the drivers would write meaningless messages to the debug log like every single second.