I've gotten COTA and have started to drill my teeth deep into it.
So far i like what I am seeing.
Commander EaW I found to be a bit too dull over time, after playing around with the demo for some time, and too few units. They also copied over too many setbacks and weaknesses of the original Panzer General, instead of correcting them and making it better.
COTA seems to be very impressive indeed, even better that it comes with both a scenario and a map editor.
Question: After having installed the patch also, I saw that it has several alternative map colour schemes set up in one of it's folders, also the one that I had picked as a separate download and wanted to use. But I found no clue so far how to activate any of these...!?