OK, here's how I feel about the tracks:
BL GP: Straight is too long, corners all too similar.
BL RallyX: OK, reverse is annoying because everybody cuts T1.
FE Club: Useless. Too small.
FE Green: Gay chicanes.
FE Gold: OK-ish.
FE Black: Too long, too re-used, but doesn't matter because nobody ever uses it anyway.
FE RallyX: Alright.
FE RallyX Green: Gayishly small.
SO Classic: 3 corners - oval in disguise.
SO Sprint 1: Needs pits due to gay kerbs.
SO Sprint 2: Alright.
SO Town: Alright.
SO Long: Alright.
AS Cadet: Surprisingly not bad-ish.
AS Club: 3 corners - another oval circuit.
AS National: 20 miles long and not enough corners.
AS GP/Historic: One track masquerading as two.
AS GT: Reverse makes it slightly interesting.
AS North: Cuts out most of the gayest parts of National/GP/Historic, making it the best circuit at Aston.
KY Oval: 3 corners. As wide as it is long.
KY National: Most corners flat out in most cars, then made even less interesting by the long boring oval bit.
KY GP: I don't think I've ever done a race there so it might as well not exist.
Westhill: Quite interesting.
There. Hopefully that will help explain how people can be bored of certain circuits. I wish I was more easily entertained, I really do.