Hey Rance,
I just wanted to give my experiences. I am a sign maker and run a computer all day, so I thought that going to a CAD program would be easy. HAHAHAHA! Not quite, I found a whole new world. The sign program I run is very intuitive, it is obvious what the icons stand for, etc... Cad programs are not this way. Most assume you have mastered autocad, THIS REALLY SUCKS! I had not even looked at autocad before dableing in CAD.
Now that I have vented my frustration
, here are my picks from the list: Cadstd for 2d, Minos for 3d. I tried several on your list and uninstalled them but I found these decently easy to understand. I am by no means proficient with either one but they both have decent options and user interfaces. Minos is amazing considering you could run it on a 286 machine. Definately download the manual. Cadstd has a very good online tutorial that you can even take a test on the individual chapters of the tutorial.
There is my 2 bits worth, hope it helps.
Jimmy Southern