HT treatments

Ive listed below different options for treatments so please advice me on which one should I use for my HT room. Room is 14x21 with 8 foot ceilings. 1) 2 4x8 mid/hi absorbers for the 1st reflection points on the side walls ( 1 panel on each side ) all remaining walls will be deep bass traps. 2) 2x2 deep bass panels for the upper and bottom part of the side walls from front to back. 2x4 mid/hi absorbers for the middle part of the wall also from front to back. 3) back wall is all mid/hi absorbers 4) BACK WALL in between the 2 rear surround speakers are mid/hi absorbers while the left and right side of the rear wall surround speakers are diffusers.