Honestly after going back and replaying DOW1 recently, it definitely had more charm than depth, almost every match ends with giant murderblobs instead of complex clever strategies. I'd say DOW2 had better gameplay overall(in multiplayer/skirmish).
What I really want is DOW2's gameplay with DOW1's army sizes and base building. Unfortunately it seems like DOW4 is going for even larger armies than 1, so murderblobbing is probably gonna be even more of a problem.