People dislike Huttball because it requires:
1. Skill
2. Teamwork
3. Something other than just dps/healing (read #1 and #2)
4. Situational and Positional Skills (Amazingly Fun)
Sorry if it isnt for you, I do agree with the ability to choose your WZ. But, I believe the reason is that they want metrics from all 3 different zones. Allowing people to choose would limit the metrics they need to balance the game properly. Its a good thing