Discuss the two basic types of interviews: structured and unstructured. Which one do you think is better? Why?

The two basic types of interviews are the structured and unstructured. In the structured interview, the interviewer lists all the questions beforehand and asks them of all candidates. In the unstructured interview, the interviewer decides on the fly what questions to ask, and different candidates may be asked different questions. In the structured interview, the interviewer can compare the candidates properly because they would have provided answers to the same questions. In the unstructured interview, however, since all candidates may not have answered the same questions, it is more difficult, if not impossible, to compare candidates. Therefore the structured interview is better.