I always thought it telling that the Windows world trumpets their tech specs while in the Apple world they're an afterthought. Windows users buy based on numbers, Apple users buy based on experiences. If Windows was a president he'd be Donald Trump, endlessly boasting about how rich and smart he is -- while accomplishing very little else. Apple on the other hand would be Barack Obama, quietly but diligently working to get sh*t done.
Really... have you watched an Apple keynote? I'm pretty sure they talk about specs. They even give their processor a goofy name like "bionic". Seriously? The reality is the Macbook Pro can't hold a candle to Surface Book because it lacks major capabilities that Apple is stubbornly ignoring... merging touch, pen, dial, and pointing device into one seamless experience. Apple has nothing that competes with this. Apple is actually doing just about nothing with their Mac line... years out of date, the only new idea was a useless Touchbar that no one liked. Meanwhile Microsoft is pushing ahead with new things to make our lives more productive. The only one doing spec bumps is Apple, and they don't even do that frequently. I think our presidential analogy is right on... one that does nothing and one that has fresh and innovative new ideas. There is a reason Apple is so profitable. They are the only technology company that can keep selling old stuff to customers for maximum coin.
The point is that the hardware may or may not be nice but the software running on it instantly disqualifies it from consideration. Not many people require a detachable screen laptop. If you do, then you'll probably be forced to use Windows, whether you like it or not.
Whether you "require" a detachable screen/keyboard laptop isn't an issue for you, because Apple has decided for you that its not an option. I much prefer that companies give me choices and let me decide what I require. Having now had a device that works as a laptop and tablet I would never go back to two separate devices.
I have a SP3. It's pretty neat, but I can't find an actual use for it. The keyboard/touchpad is really horrible, but I've heard that they have made some improvement on that front. My main gripe is that Windows doesn't work in tablet mode. The second you go into settings or something, you're right back to 0.2" buttons that are almost impossible to press.
But hey, at least it's a full touchscreen. They are working to make it a real advantage. Can't say that about MacBooks.
You know that a Surface Pro and Surface Book are not similar, right?