Oddly, I am compleatly opposite of that. I look at it this way:
1) The more connections the better because more airports and more fun!
2) Always a different airline, for the experience.
3) Preferably a different plane every time, I always like to fly a plane I have never been on if possible.
4) The only real prefferance I have is a window seat. Easier to sleep plus you get to look outside!!!!