Focal, Martin Logan Sistine or Paradigm for in ceiling cool.

Unfortunately, in ceiling speakers are a "requirement" if you will, in our family room, to keep my wife happy.  She wants "nothing visible on the counter or the floor".  I am not sure if there is a significant difference between Focal 300icw8's or Martin Logan Sistine 4xc's for the fronts and center in ceiling speakers.  Paradigm seem similar to the Focal 300's.  The family room system includes an Anthem 60 processor with Bel Canto REF600m amps, Oppo blue ray, Velodyne 12" sub (in cabinet but will be moved out when needed).  I am not crazy about in ceiling speakers (unless used as rear speakers) for our family room but the happiness of my wife supersedes my audio preferences. I would really appreciate some feedback from anyone with experience with any of the above in ceiling speakers, or any alternate recommendations (in ceiling only).  Thank you!!