you cant make an informed decision in a day
if your after an electrical desingn package no matter what autodesk and solidworks want you to think there are more players out there some have been in the markets for a number of years
eplan been arounfd for 40+years
wscad been around for 25 years
which is considerbly longer than solidworks
And if you want to see something very scary google "eplans can your cad do this ?" video which i count 50 plus features that dont exist or are poorly implemented in ACADE
My simple rules
1) If they have a trial version on their website download and play with it
2) Make a list of what you want the software to do
3) Get the representatives from the various cad vendors to come and give you their supper demo probably a webinar now days (remember the demo is to showcase what's good and hide what's not)
4) Have a serious think about what you have seen does it do what you want? Is it easy to use? Do you need training? What the technical support like? What’s the ongoing costs?
5) Get back the various vendors and force them to demonstrate what you want to see the product do if they cannot do what you want or end up doing something extremely complicated this tells you something about the product if vendors software demonstrators have problems then you will definitely will have problems
6)But this may all be redundant as you may be forced to use the same cad products as you main clients or are in an industry where only one particular cad product is used
7) remember it’s your or your companies money if they want some of it then they will have to earn it
Products that I know about
Aveva electrical http://www.aveva.com/en/Products_and_Services/Product_Finder.aspx#open:12953794-EAE9-4F0B-96B9-37A12...
Cadprofi
http://www.cadprofi.com/main/en/products/cadprofi-electrical
Cosmos
http://w3.siemens.com/mcms/plant-engineering-software/en/comos-platform/Pages/Default.aspx
Ecscad
Sold by Autodesk
Elecdes
http://elecdes.com/electrical-cad-software/elecdes-electrical-cad-software
Eleckworks
http://www.elecworks.com/index.aspx
Electra E6
http://www.xetec.eu/
Elprocad
http://www.elprocad.com/Comparison-Feutures.html
Engineering base
https://www.aucotec.com/landing/aucotec.php
Eplan
http://www.eplan.co.uk/uk/start
Ige-Xao
http://www.ige-xao.com/software-editor/electrical-cad-software.html
PCschematic
http://www.pcschematic.com/en/index.htm
Promis e
http://www.bentley.com/en-GB/Products/promise/
QC Cad
http://www.qcecad.com/qc/en
Schemelect
http://www.ftz.fr/v4/en/cad-software-design/electrical-drawing-schematic-diagram
Smartplant Electrical
http://www.intergraph.com/products/ppm/smartplant/electrical/default.aspx
Solidworks Electrical
http://www.solidworks.co.uk/sw/products/electrical-design/solidworks-electrical.htm
Winrelay
http://www.ingerea.com/WinRelay.html
Wscad
http://www.wscad.de/en/electrocad/
Zuken e3
http://www.zuken.com/en
Im not a consultant
Just someone who has to work with them on a day to day basis