You didn’t find “Duet” good? “Progress”, “In the Hands of the Prophets”? Or the opening three-parter?
I love those so much.
That said, some second season episodes you can happily skip, because they’re a bit shit/mediocre: “Melora”, “Second Sight”, “Sanctuary”, “Rivals”, “Profit and Loss”.
Essential episodes: “Necessary Evil”, “Shadowplay”, “Blood Oath”, “The Maquis”, “The Wire”, “Crossover”, “The Collaborator”, “The Jem’Hadar”.
Really? I really liked Profit & Loss, and liked Sanctuary, but have no idea why Shadowplay would be considered essential. Is the B plot important?