I generally watch all the games I can - not just of the cowboys but also of the other teams. I just really enjoy the sport, I watch college too but don't enjoy that quite as much.
I guess im somewhere in the optimistic category. Even when the team is bad and I think I wont want to watch I cant help but get pulled into it on game day.
For college football im sort of a bandwagon fan in that I don't have a favorite team so I tend to pick a different team every year that I like early on in the season and then root for them. But I generally pick a dark horse, an underdog team that has some chance to compete though they are not the favorites. I almost always root against the favorites - especially Alabama and LSU.
So I rooted heavily for miss state last year. I rooted for texas tech the year they had a good run. This upcoming year it might be UCLA because I like Rosen and last year I liked the way they were really trying to get a dominant run game going.