I belong to those people, who don't like
A Star is Burns. It was, like said nowadays, just a crossover to promoting another show. Weak humour, IMHO, despite I understand its straights other people love.
Well, if thinking… hmmm… I'm not keen on
Bart vs. Australia and
Bart's Comet. The first became too ridiculous Scully-ish family trip (with solid story development, though), while the latter seems kinda boring, with absurd 3rd act (but also with great gags).
Fear of Flying also had strange plot development without wide ways to go (Homer became a pilot, Marge reveals she fears of flying, she visits phycologist +
Frazer crossover scene), but still I like the episode for much great funny moments, some of which became real gems.
Relatively, ALL aforementioned episodes are good.
'Round Springfield - pure emmy bait
Personally, I "pecked" that bait.
I REALLY LOVE it.