Absolutely Amazing
This is some of the best work on Newgrounds. I was playing this for hours. Everything was exceptionally well done.
I have only one suggestion for Epic War 4: With all the playable characters to chose from, why not make some imbalances; where certain types have special advantage over others, this would add another element of strategy to the game, requiring the player to change our their forces based on who they want to attack, and making them possibly vulnerable to other enemies when defending, which would then make the player think about two kinds of forces, offensive on their turn, and defensive when the computer is playing.