Morse code beats all of these. Steepest learning curve, but fastest entry. At one point I remember people talking about modifying dumb phones (pre iPhone era) to have the ability to enter Morse code via a hardware button on the side of the phone.
The world would be such a different place if Morse code was taught in schools alongside other basics we learn.
If all you care about is typing a stream of letters and numbers, this is indeed so.
But I very often need editing things, moving text around, selecting, altering words, copying and pasting. I need upper case and lower case, fancy punctuation characters, etc.
Not that a proper Morse code mode can't be invented for that: vi gives us an example of such an interface, based entirely on letters and mode-switching.
BTW Morse code is relatively slow to enter by fingers alone, the muscles are too weak for the mass. A proper entry key is fast because it uses muscles of the entire arm.
The world would be such a different place if Morse code was taught in schools alongside other basics we learn.