I’m not talking about the little customization things you can do, but just the big options: qwerty, colemak, Dvorak or whatever.
I was doing some research and found this very interesting article. It seems to be about economic theory, but it mostly uses the qwerty/dvorak choices as an example that dominates the whole thing, especially after the first part (it is long).
But it is also very interesting and insightful:
Essentially, it seems a lot of the claims for Dvorak are based on biased, flawed studies - often run by Dvorak himself, but with really bad procedures. There are things I can’t tell from it without more testing results. Most about how they may compare if you were a non-typist starting from scratch. But for typists, even mediocre ones, it seems the data does not show much, if any, advantage to changing to Dvorak.
Of course, it still comes down to individuals. I was a slightly above average typist on qwerty after a LOT of study and practice and also seemed to be in a rut. But I also found that if I stopped practicing, I quickly dropped to well below average. When I switched to dvorak, it took less time to get past my qwerty speed to be quite bit better than qwerty ever was and if I stopped practicing, I would still be as fast as I had been on qwerty at my peak. So, yeah, I made the right choice. But maybe it isn’t the best for many others.
They don’t discuss Colemak, but it still gives you something to think about. If you are thinking about changing, at least if you are already a touch typist, you might want to take the time to read it.