I like Kdenlive, but I never tried Blender. I think Kdenlive is the good middle-ground complexity for me, DaVinci was too overcomplicated for me just to make a couple of videos a year. I used to use VideoPad, which is ok, it renders faster than Kdenlive, but I think the editing process is less efficient, and it has other issues. In some ways Kdenlive is less stable (crashes more often), but it seems less likely to end up with a project file that becomes unworkable. Sometimes in VideoPad you’d end up with too much stuff and the editing process would become laggy or just cumbersome (limited channels and effects). Kdenlive is a bit more powerful without becoming more complicated.