I only ride TB's, so I have only ever fallen off them. I have fallen too many times to count, but the falls that stick out in my mind are the following:
Riding my sister's TB who spooked at the tractor and bucked me off.
Stupid fall whilst getting onto my TB at a hunt, he moved and I went over the other side.
Going over a jump, my horse tripped as he landed and I came down, broke a collar bone.
My other horse ducked out of a cross country jump, reared and then spun to the left, I spun to the right (pic below).
Horse threw a huge buck going over another cross country jump, I flew but no injury.
Horse stopped at a showjumping jump, then jumped from a standstill, again I flew but no injury.
I have been riding since I was 6, but only properly riding and competing for the last 12 years.