Please define Pedal Feedback
This is STW so I'll be slapped down instantly of course, but what I know as Pedal feedback is where the rider can feel the suspension moving through the pedals.
All the bikes you mentioned have a reasonably high, forward placed pivot, giving a backwards arcing montion to the rear axle path. So the distance between the rear axle and the BB grows as the bike compresses through it's travel.
This can be detectable as the pedals are effectively pulled backwards slightly under compression.
The positive side is that under power, the chain wants to pull the rear axle forward thus acting against the suspension and stiffening it slightly so when cranking along it should counteract the bike's tendency to bob.
My personal experience is that on some bikes with high forward pivots when you pedal hard through rough terrain it can feel a bit like the bottom bracket keeps going momentarily stiff. And stood on the pedals coasting through rough terrain you feel more of what's going on. It can only be a tiny sensation but after 10 years of riding other types of bike it was noticable. I'm sure I'd get used to it, and would quite like to as I'm starting to lust after the Orange 5...
The closer to the BB the swingarm pivot is located, the less this will be felt. But the more bob you'll get, and the more you'll have to rely on platform damping and swish shocks.