Garak.
He’s learned, he’s artistic, he has major skills, he’s a true patriot (not just a posturing, power-hungry egotist), he’s respectful to children (“Excuse me sir, have you come to take us back to Cardassia?” “I’m afraid not, child...”), he’s respectful to women, every character that I like and respect comes to like or at least respect him...
And he hates Dukat.