this is not a comparison between these two games, but in reality I don't like how Creative Assembly create their expansion. They never merge games together, so we can get benefit from the improvement they make in the expansion. For instance Medieval & Kingdom, ETW & NTW; they look like a new game to me. I never call them as an expansion. Whenever I play NTW; I see more organized unit, terrifying shot power that never make cavalry units never charge face to face and start to adopt new strategy. On the other hand, this is not happening with ETW. Although, DMUC has given the game new dimension, but it could not improve it to the level that can match NTW.
I wish if there is mod to merge both games together, so we can have new level of entertainment and challenges.
I really hate CA expansions; they ruin the entertainment rather than improving them.
At the end If there were no DMUC, I would stop playing ETW long time ago and delete it from my system as I done to NTW because they are very boring game.