Modern Warfare 3 or BattleField 3?

I'm trying to decide whether or not to pre-order Modern Warfare 3 or Battlefield 3. From the looks of it Battlefield 3 is going to have a more realistic edge and an interactive environment as with Modern Warfare 3 is going to be similar to Modern Warfare 2 just with more stuff and a better graphics! Give me some feedback on what you think!!!