I've used both. manjaro has "nice" bloat and I want to like it... but it doesn't use the official arch repos, it uses its own. the manjaro repos lag behind the arch repos. this creates a problem when you want to install an AUR package that depends on stuff from the arch repo. sometimes you can't install or update your AUR package, sometimes it breaks. AUR is one of the most compelling features of arch and if it's not safe on manjaro then I have to use endeavour.