I saw my first and only WS game out here so the Dbacks almost made me like baseball, almost. The ballpark is awesome with the retractable roof and opening side panels. It makes it almost feel like an outdoor park.
Plus, their players are upstanding members of the community. If you even hear rumors of wrong doing they are out of here. They have some good young players in their farm league so they might be back.
The only thing is they are in a city w/ so many options. Is it even a question whether you go watch the Dbacks or Suns right now?