I have also ran FH and FW at different times with my system. I like both, then what is the difference? I used the FH when things were setup on the long wall and now use FW with the setup on the wide wall. It also depends on the ceiling height of the room as well as how wide the room is for the system. Remember that these are not major speakers and provide spatial cues for the listener. For example my FH were 9 1/2 ft off the ground and with the FW speakers, they are 6 ft from the mains.
Klipsch RF 7 based HT 7.4, Pioneer SC 35, Acurus Five 200 amp, Chase SS 18.2(2), VS 18.1(2), Samsung BDP F 7500, Asus/My Book Live HPC 4 TB
Yaquin VK 2100 amp, McIntosh XR 5 speakers, Samsung BDP F 7500