I REALLY could not stand Jadzia Dax. Somehow, she managed to come off as even more smug and arrogant than Guinan and was almost as useless. Her job could have been filled by any no-name red shirt of the week with little disruption to the plot. What really bothered me was that everyone put her on a pedestal for things her previous incarnations did! The show goes to great lengths to point out that each incarnation is different than the previous ones and yet they expect us to think Jadzia is a badass because one of her earlier incarnations met Leonard McCoy or negotiated a treaty with the Klingons and such.
Another character I couldn't stand was Jake Sisko. He did absolutely nothing of value throughout the series, he was as irritating as a gnat and received just as much characterization. All the other characters seemed to have developed over the seasons but not Jake. Jake still remained the same lazy, shiftless, spoiled, useless character he was at the very beginning of the series. They should have just killed Jake off for all the good he did on the show. At the very least, his death would have made a decent episode, certainly superior to any one of those ungodly Ferengi episodes.
Another character I couldn't stand was Jake Sisko. He did absolutely nothing of value throughout the series, he was as irritating as a gnat and received just as much characterization. All the other characters seemed to have developed over the seasons but not Jake. Jake still remained the same lazy, shiftless, spoiled, useless character he was at the very beginning of the series. They should have just killed Jake off for all the good he did on the show. At the very least, his death would have made a decent episode, certainly superior to any one of those ungodly Ferengi episodes.