What are the best tablets for replacing a Microsoft laptop?

The (included) Surface Pen has a very interesting set of features - it allows for 1024 points of pressure, has an eraser on top, and when you click the eraser it will open Cortana (Microsoft's new voice assistant). It's magnetized, so it will stick to the left side of the Surface. The Surface achieves all of this via its new N-trig technology (replacing the Wacom technology found in older generation models). There's also palm rejection technology, so whenever the pen tip it close to the screen is will ignore all finger or palm touches.