What are the best tablets for replacing a Microsoft laptop?

Having a keyboard option on the Surface 3 is much appreciated, and almost a requirement for most computer tasks. Typing out emails, commenting online or taking notes is not very easy to do on a 10.8" on-screen keyboard. The physical keyboard is about 1" shorter than a full sized keyboard, which is big enough to type fairly comfortably. The keys are pretty quiet while providing surprisingly long key travel for it's thickness.