Which branch would have the most power without judicial review? legislative judicial executive all would be equal.

The Legislative branch would likely hold the most power as it would be able to create law outside of any Constitutional constraints.

Second would be the Executive branch, especially the modern executive branch.

The Judicial Branch would be largely useless and would not be a co-equal branch of government.

During the European middle ages, social life included a more feudal type system, given that comprehensive economic theory had yet to develop. Political life revolved primarily around the desires and interests of the super elite and those in power, while economic life was sustained through basic agriculture and manufacturing of important goods.