Just out of curiosity. Who was the Wesley Crusher of DS9? This show has many beloved characters but who did fans dislike?
Some may have started out with a funky character concept, but I think everyone except O'Brien's personality changed before the end of the series.
I found both Rom and Leeta a bit annoying right up 'til the end, even though the Ferengi shows were always funny. Rom's personality after season 3 always made me think of Gilligan from Gilligan's Island. Sometimes funny, sometimes just odd.
Worf needed to lighten up. Some of the episodes leading up to the marriage were very annoying. Even General Martok pointed it out.