As a marketing strategist analyse this list of newsletter business ideas. This business involves creating a newsletter, building an audience and then monetising the audience through advertising and sponsorships.
Analyse them by these factors: total market size(+), value of subscribers(+) and competition(-). Score each factor out of 100 and use this to create a composite total score of 300 for the attractiveness of the newsletter business idea. 
Sort all entries by their composite score, highest composite score at the top then descending. Present results in tabular form.