S6500fd has better noise performance than S9500/9600 because it has fewer no. of pixels on about the same size image sensor.
9MP >6MP is of not much use because the limitation is in the lens in many situations where more pixels would simply give your more noise but not more details.
Face detection is of not much use in most situation too if you know how to focus and recompose.
If shooting at ISO 800 and 1600 is important to you and external flash hot-shoe is not important, then it makes sense to prefer the S6500fd.
How about the tilting LCD monitor in the S9500/9600? Don't have in S6500fd? Tilting LCD monitor is useful when taking pictures high angle above your head or low angle down near the floor. Other than that, it's much more steady to shoot using the EVF because you have some support by pressing the camera against your eyes. So I always shoot using the EVF and only use the LCD monitor in peculiar situations where using the EVF is not possible. Many noobs with prosumers cameras still like to use the LCD monitor because they're used to their previous small PnS without any view finder except the LCD monitor. That's why they got handshake blur even when 1/actual focal length guideline is followed and handheld.
The LCD monitor is more suited for picture review to check composition and exposure histogram (but not sharpness) immediately after a snap.
[p.s. faster add your comments before someone (not the threadstarter but someone nothing better to do and who OT everywhere in Clubsnap) come and say "Thread served its purpose" and then close the thread. I notice such things only happen frequently recently in Fujifilm sub-forum and not in Canon, Nikon ..... etc. sub-forums.]