My first was Linux Mint as well because it was more simplistic and cinnamon is really simple to use, good extensions available and stable for the most part, sometimes happened memory leaks but fixed on version 5.8; currently using Debian RC
Devuan - A better installer like Calamares and stop using backports as default on ISO lol it's a pain to use Ceres from there
Siduction - They should use a bit more ISO's giving 2/3 instead of 5 options to make available more ISO's regularly, obsolete ISO that is updated yearly lmao
Mir is there