Eagle!
I've tried KiCad, EasyEDA and a few others, but Eagle free was the easiest to use. On one of my first projects I needed a part that wasn't in the library, and it took me a half-hour to build my own part and save it in my personal library. Managing component libraries is a b!tch in KiCAD. (It can't be emphasized enough). I never figured it out. In Eagle, your library files can be anywhere.
I can easily live with the limitations of the free version: "Limited version for hobbyists including 2 schematic sheets, 2 signal layers, and an 80cm2(12.4in2) board area."
Support is beyond excellent. There is even an Autodesk support tech on the Autodesk Eagle Forum. Dumb questions are always answered politely by other users (unlike other user forums... cough, cough)
I can't imagine ever needing a board larger than the free version allows, or more than two layers. If my boards ever get that complex, then I can always get someone on fivver to make the PCB from my Eagle schematic file.