This questionnaire should go to those who drive these tracks. Apart from having ridden shotgun a lap of Spa on a Wednesday before the race in the early 1990s in a road car (I was still too young to drive myself then), my only other "experiences" come from onboard cameras. And onboard cameras don't transport g-forces into your living room, otherwise you'd need good setups for your sofa on each race weekend
so personally, I could never say what corners are over- and underrated.