Hard to believe that no one has offered an opinion. And since this post was made early December '15, and you probably already made a choice; I feel pretty safe of offering an opinion...
Of your options;
Option 1; you want your entrance to your home to be as unobstructed as possible.
Option 3; while seemingly ideal placement, places speakers along the seem of two rooms; bad idea.
Option 2; I would consider this the best, just as long as you angle the audio direction inward for optimal performance.