I also like larger divisions. Make's it harder and worth it a little more. As for..
2. I lived Houston during our hiatus between the old team and Texans. Most I know just didn't care about the NFL during the quiet years. (Except for Super Bowl in 2000. Thank you very much Rams denying Bud a Lombardi. I will never hate you ever.) I didn't even have the heart to switch to Cowboys during those years. My dad however stayed faithful to the now-Titans and we will still give him a hard time over it. If I ever move from Houston, I still be a 'Stros, Texans, Dynamo and Rockets fan. However, if wherever I moved to did not contain a current or even historical rival (so no Cards if I find myself in St. Louis) and moreso in the NL, NFC or any eastern conference then I wouldn't mind that taking on a second team.
3. This depends on whether or not you can separate fandom from design appreciation. Loathe the Titans, but their uni's not too bad of a design. OK with the Rams but their uniform dilemma is pretty much an eyesore. Colts are a thorn in our side, man they have a beautiful look. I hate what those uniforms represent but they are a good-looking representation. Our previous loss vs. the Chiefs was hard to look at, but it was easy on the eyes from a uniform standpoint.