I'm late to this discussion because I've got a bit of spare time leading up to Christmas.
My architect brother was the AutoCad guru at his office in the 70's to get them proficient in CAD design. I never liked CAD of any kind as my skill/talent was on the drawing board and always preferred the art work side of design - (won a few awards Mackintosh School of Art Glasgow). BUT eventually moved to "CAD" when I discovered SoftPlan in 2008. Immediately took to it like a duck to water. I found that I could work with the same feel and expression as I did on the drawing board and my SotfPlan drawings reflect my hand-drawing style. My drawing board still sits in my office for when I need some free-hand sketch inspiration but that's about all - thinking of selling it actually!
My big advantage was I never touched AutoCad - after watching my brother hammering away at keyboard commands - so I guess I'm not really in a position to judge!