The Wargame series is infinitely better than Act of Aggression, and Company of Heroes 2 is infinitely better than the Wargame Series. Except maybe the first one in which CoH 2 is just better.
Of course this is subjective as most things are:
I find WarGame to run better but I don't care CoH 2 is more satisfying
I find CoH 2 to be unbalanced but I don't care because so is every Wargame after EE.
I find CoH 2's gameplay slightly finkicky, but I don't care because Wargame puts me to sleep because everyone camps forests.
I find Act of Aggression dull and has a lower overall quality and attention to detail when compared to CoH 2. Hell just compare the voice acting. You'd find better voice actors in a community theatre, how Eugen couldn't get decent fork'n voice actors for a French faction
WHEN THEY'RE FRENCH I HAVE NO IDEA.
Seriously do French people hate speaking English so much they refused to do the accents for this games "EU/UN" faction.