Sisko came off as being a complete asshole. How can he have the nerve to verbally abuse Picard and blame him for the attack at Wolf 359? (I *hated* the fact that Picard said nothing to that). Like it's Picard's fault that he got kidnapped and assimilated into the collective. I don't know how much it was about the way Avery Brooks portrayed the character, but Sisko just wasn't a likeable person to me, and he never changed.
And of course, Kira. Hmm. Ok, I understand that she's pissed at the Cardassians, and I understand that she's pissed at the Federation for butting their heads into their matters. Was it necessary for her to be a complete bitch all the time? And her transformation from hating Cardassians to working with them never seemed realistic to me. One day she wants to kill Dukat, the next day she's working side by side with him. Right.