My progression was Vim -> Emacs -> Sublime. Funnily enough, on systems with no Sublime I still tend to use Vim.

It took me about a month of consciously making myself work in Emacs to get a hang of it. But I don't use any major features, like macros.

Emacs is awesome for Python indenting, for example, but when I switched to a less elaborate indenting convention, I kind of just drifted away from Emacs.