I'm glad to see I'm not the only one who had a problem with Dukat post-"Sacrifice of Angels", but I really started to pull for him for most of the last 10-episode arc that ended the series. What I can't forgive is the really lame way Sisko and he ended their battle.
Dukat supposedly has all this power and is holding Sisko down and Wynn's distraction is enough to make him let go and allow Sisko to push them both off? Silly. They could have worked much harder on that. Dukat deserved much better.
I think Dukat was deluding himself when he told Wynn he had changed that much; he was about to obtain the ultimate power of the Wraiths, after all.