An interesting idea for a forum thread.
I want to be approach this topic a little more philosophical.
Are there "optimal" strategies? Do those even exist?
I mean to pick the optimal strategy, you would need to have knowledge of all the units/buildings on the field, and know what each one of them will be doing in the future. So i figure there isnt any :D
OK here is my non-optimal strategy, and its basically the strategy i use in most of my games:
Spam, Spam, Spam!
Yep that´s it, nothing more, nothing less.
Basically you just need to survive the early game, till the point where it switches from raiders to skirmishers/riots etc.
At that point, just get enough buildpower and then spam spam spam.
The unit composition isnt even that important. As long as it isnt total trash.
At the same time you need to try to reclaim as fast as you can, to just spam more stuff.
All this will leave you with plenty of micro time to move your units to always the right positions, in order to slowly kill of everything thats in front of you.