Affiliate Marketing Secrets

Now I do understand a blog niche has to be something that you are passionate about or you will not stay committed into it but another thing is I’m not sure which one to do because they can not be too general of topics either. I have comprised a list and I just wanted some feedback on what would be the best.
• Baseball (MLB updates, playing the game, personal opinions on events)
• Phones/iPods
• Video Games
• Friendships (advice, making new ones, etc.)
• Partying
• Music (dance, reggae, rap)
• Teen’s clothes
• Humour
• Travel
• Hockey
• Past stories
• Inspiration for youths
• Elementary level studies (tutoring)
• Teenagers Lifestyle (a blog for teens)
• Poker
• Family Guy
• The Simpsons
• Big Bang Theory
• Teen life coaching
Alright please give input, thanks.