Sort of a subpoint I was thinking when I made my last post. Spa is a good example because - I hate to say it - the past few years haven't produced the kind of great races we would expect from the circuit. Even extends to the WEC unfortunately. Yet all of the Silverstone races I've seen have been better in comparison.
Ultimately it mostly comes down the cars, but another portion is just how ballsy the drivers were feeling, in one sense or another.
I wouldn't expect this level of crazy every year from Spa, but to my memory about the most memorable thing since then was the Rosberg Hamilton controversial crash. The races there still tend to be miles better than most, but what I'm saying is they seem disproportionately tame for the track and what it is.
Now with Shanghai, I always get a laugh out of how it has the longest freakin straight in the calendar, yet still they end up 15-20mph slower than the fastest speeds we see at Monza, Mexico, etc. Mainly has to do with the lead in I presume. And the elevation changes look so "artificial", as if the pure intention was to make things look a little less flat.