Is there any scientific research that shows that Colemak is better?
According to carpalx, which is the most extensive research on keyboard layouts done so far, Colemak wins over Dvorak and QWERTY in all different typing effort models. Note that the default scoring model used by carpalx is somewhat subjective, but configurable. Moreover, there is plenty of anecdotal evidence on the Colemak forum, and on the web.
