Quality is what matters.
The examiners will be looking for evidence of thought and consistency of approach, thorough research within the topic chosen according to approach taken, and signs that the material discovered in the course of research has been analysed to produce an argument and to justify conclusions. It is not good enough simply to summarise and string together the material. The examiners will be looking for structured, thoughtful argument and analysis. See also chapters 3 and 12 of Glanville Williams, Learning the Law . A bibliography of books and articles used should also be supplied.