A significant differenciator is the dev/maintainer I'd say. No, really, hear me out :) I'd start with: this goes for almost any FOSS tool, not just this. Not saying one is good, one is not – but user choices, user feedback, interactions, deisgn goals/choices get affected (and sometimes influence) a lot based on how a dev/maintainer looks at their product and humans who use, or would use, their product – or contribute for that matter.