Speaker Imaging - Do you hear a line, or do you hear an arc??

While I agree with the room and speaker placement within it doesn't explain the differences in imaging from different speakers placed in the same place. The revel salon 2's were the most particular in my room, imaging was always recording dependent, but the soundstage was elusive with them. the big ushers imaged wide and deep but very little height. the revel f52 were the most intimate imaging speakers i've ever had in this room placing singers and instruments solidly in space while capturing panning effects intensely. There's been several quality speakers down here with their own personality,   the current residents manage to erase the walls and put me in the middle of the performance.  Roger waters, amused to death for example the phase thing had different results with each speaker. A speakers ability to capture my imagination and allow me to create the image can hide many other shortcomings and I don't know if there's a measurement for it yet.