Y'know, I didn't even know the Surface Pro 3 had a stylus available. I guess I've been ignoring Microsoft so long, it never even occurred to me to check. But yeah, the iPad Pro really does look almost like a carbon-copy of the Surface Pro, doesn't it. (With the obvious advantage that it doesn't use Windows 10. )

Looking at the two stylii, I've still gotta put the Apple Pencil ahead of the Surface Pen: (a) the Pencil has a tilt sensor, and (b) the Pencil has no buttons. I've used a Wacom stylus off and on for a long time now; it has probably the most comfortable button you could put on a stylus, but it still starts hurting my fingers after a few hours of use. Better to use something besides the stylus itself to record clicks...