The Cowboys are the only team I am really sold on in any sport. I have teams that I root for depending upon a given situation.
For example, I rooted for whatever team Nolan Ryan was pitching for. Since his retirement I have rooted for the D-Backs, White Sox & Rockies because they play Spring Training baseball here in Tucson. If one of them were to leave (White Sox are considering it) and another team were to come here I would probably switch.
I used to be a big Lakers fan during the Showtime years. I enjoyed that era of basketball and Magic Johnson was simply the most fun player to watch in the NBA for me because he made everyone around him dangerous. I haven't seen an NBA game from tip to whistle in about 4 years. I kind of root for the Suns and like the way they play full throttle basketball like the old days, but I just haven't been able to bring myself to watch it yet.
I love Hockey, but prefer to watch it live, so I do not follow the sport. I root for the Coyotes only because they are the state team and their colors are kind of cool. I enjoyed watching Wayne Gretzky very much. Seeing him live one time was a true treat. His coaching the Coyotes might be another reason why I like them.
I love the Arizona Wildcats and North Carolina Tarheels in NCAA basketball. One because they are local, the other because they are Duke's biggest rival.
I consider all of the NCAA Football as Christmas shopping for the Cowboys. It is my 2nd favorite sport behind the Cowboys in the NFL.