Dear Friends,
I agree on the comparisson indicated above, but i tried DocWin, which almost cover all features mentioned except for switchboard coupling but rest of elements such that but not limited to, transformer sizing, cable sizing, busway sizing, short circuit calc., voltage drop calc, ups effect, motors, capacitor banks (power factor correction), are covered .i belive that this software is so powerfull, moreover, you can request a free copy from the site of abb by sending them a request from your business mail.