[tipsydoo]

>Otherwise, a fight between two pregnant women could be seen as a mech fight.

I mean, when you consider what pregnancy does to an expectant mother, hormonally, and the lengths to which some will go to protect their unborn child... It's not an entirely implausible characterization.

But speaking to AOT, specifically, it's real robot with some super robot/fantasy/Abrahamic text characteristics to allow for the setting. Despite the "summoning" aspect, practical considerations of when and how to employ titans, the political, social, and philosophical ramifications of their existence and use, and the fact that the story is ultimately a study of characters caught up in war and history and intrigue, all point to a solid mecha, real robot classification.