I liked it when I was younger. I played a lot of Madden. Nowadays... meh. I currently follow baseball, Premier League soccer/football and hockey. American football just kind of fell away. I watch CFL (Canadian Football) sometimes. I follow the Hamilton Tiger-Cats. You can look up the difference between NFL and CFL yourself.
I'm trying to get back into it. I'm watching the Patriots game right now. I'd say I'm a very casual fan since I haven't followed it in years and I don't know any of the players anymore lol. It doesn't help that I don't have anyone to watch it with.