I personally like AutoCAD, BUT, that is because I have modified/personalized it tremendously. As far as AutoCAD electrical package (available as an add on to Architectural Desktop) I found the package to expensive for no benefits and those I have checked with have given it mixed reviews at best.
I would recommend looking at your needs. Are you heavily into design or is this just showing a few devices in a residence? Then talk to others doing the similar work.
The only things I would personaly recommend in design software is that it work, be easy to learn, and be customizable (if you have to do things this sort of thing often), so with a little training you can make it work like you think it ought to. You may also consider do you need drawing compatibility with something else.
