The best one, I think, being Magit for Emacs (if you can call that a 'GUI' given you can run it in the terminal).
If you get used to commit things by-line instead of by-file (which is generally highly recommended with git), and also clean up your history/squash things a lot, using git cli gets VERY tedious very fast; I'd rather do it in several keypresses because why not.
> It's Achilles' heel is speed, though -- too damn slow. (Last time I tried it, anyway, which was a while ago.)
Don't remember a single of case of it feeling too slow in the last few years, whether on linux/mac... (maybe it just got better over time though)
I also plan to make Magit faster across all platforms.
It seems like the sort of ui that needs to be near-instant in order to be usable, the premise being you can tap the various shortcuts to assemble a command very rapidly. But on windows this is an exercise in frustration because each command takes at least a second or two at best to execute and often much longer.
But that still doesn't help explain its benefits to someone who hasn't tried it. For the crowdfunding campaign that I ran earlier this year I wrote a few articles. For those unfamiliar with Magit I would recommend [2] and the more visual [3].
[1] https://en.wikipedia.org/wiki/Text-based_user_interface [2] https://emacsair.me/2017/09/01/the-magical-git-interface/#st... [3] https://emacsair.me/2017/09/01/magit-walk-through/#start
I think that the distinction that makes a Commnad Line Interface is the REPL.
I consider anything with a non-linear UI that you can see a GUI.