My favorite scenario is: take all the Boards and all the counters, and give both sides lots of arty
Apart from that I also enjoy Ben Suc. I like to play the VC in that one and am still trying to find the ultimate defensive setup. I like to keep the bulk of their infantry deep in the woods to begin with and aim to use their 'ambush' capability after harrassing the imperialist invaders with long-range fire.