I am familiar with both universities. Generally speaking, Nanchang University is definitely better than Liaoning University. But it also depends on your major. Liberal arts (economics, management, accounting) majors are stronger in Liaoning University, but engineering and science majors are definitely stronger in Nanchang University. There are few job fairs in Liaoning University every year, so it is difficult for engineering and science students to find jobs directly after graduation.
Both universities are 2 1 1 schools. If you want to study in the future, you will have the opportunity to study.