I’ve been lucky enough to work all three of the IECC based computer signalling systems, here is my view on each one...
MCS: crap, clunky, slow to react, unuser friendly, poorly drawn maps to work off. Maze like menus to find features. Very poor cheap mans system.
WestCad, decent enough, does the job and does it well. Not a fan of tracked ball control but some swear by it. A little dated compared to Scaleable.
Scaleable: fantastic ! Extremely user friendly, HD screens with a continuous signalling map you can zoom in on, scroll across on, you can set up your own screens to your own preferred setting and save them for your nsxt turn.
The mouse based drop down menus are very quick to use, the drag a box feature is great for possession set ups and take offs.
The only negative is you can’t set a route signal to signal across screens, you need to use the drop down menu route setting which in a complex area you have to careful not to wrong route.
I’d go back to Scaleable like a shot !