I have my mapping spells where I do OSM mapping for a week or a month and then I might not map for a year or two. For mobile mapping I have all those you mentioned installed. They all are useful for something, except perhaps StreetComplete which is just a crippled version of SCEE for me. I also have OSMFocus Reborn installed which I use if I want to inspect ways and nodes in an area when I'm not in the middle of editing/adding anything with one of those other apps. That app is good for quickly checking some things out.