Genre Analysis

Comedy:

Strengths: It doesn't need any props. All it needs is a funny script.
Weaknesses: It is usually hard to make as the script has to be funny. Also some people don't find comedy very realistic because of all the humour.
Opportunities: It can improve the audiences happiness.
Threats: Even if the media is funny for some it won't be funny for all of the audience as it might not be to everyone's 'taste'.

Action:

Strengths: Because of the continuous action it keeps the audience interested if it has a well made script. 
Weaknesses: It can be difficult to create convincing SFX.
Opportunities: It is a popular genre so you would have a large audience.
Threats: It can promote violence.

Thriller:

Strengths: It usually has an interesting storyline if scripted well.
Weaknesses: Thriller can cause health problems especially for young children.
Opportunities: Making a thriller would provide the chance to use different lighting and camera techniques.
Threats: Filming would be difficult; if dangerous looking props are used the public may call the police.

Having analysed these three genres I've decided to film a thriller because I want to make an engaging short clip in which my audience will enjoy the storyline.