Actually, there's only one Ferengi ep. that I don't like: Profit and Lace. It was bad. Threshold bad. Nemesis bad. Very bad, in other words.
But y'know, it's sort of strange to me that people forget sometimes that Trek is often at its best when it's doing comedy. How about TOS's tribbles, McCoy's sarcasm, A Piece of the Action, nearly any line spoken by Chekov, etc.? TNG's A Fistful of Datas, lots of Geordi/Data schtick, Guinan stuff? DS9's Bashir/Garak lunches, O'Brien's exasperation at just about everything, Dax's one-liners? VOY's EMH, Tom and Harry bantering?......Trek is pretty damn funny, sometimes!