Two types of applied business research for discussion

There are two types of applied business research; students need to review them and discuss with their project supervisors subsequently. They are:

Type 1 [with a specific set of management concerns from a particular client organization]: Mainly case study research, preferably with the agile literature review approach

Type 2 [without a specific set of management concerns from a particular client organization]: Mainly questionnaire survey research with hypothesis testing

The four questions for students to consider are:

Q1: Which research type is easier to conduct? Why?
Q2: Which research type is more impressive to the examiners? Why?
Q3: What is the research type preference to which supervisor? Why?
Q4: What is the research type preference to you? Why?