What I did like about pretty much all characters in DS9 was that they all had their flaws in their own way, Sisco took things personally (like the marquee incidents), kira was quick to anger, Odo did not have much in the way of inter-personal skills, Bashir was way overconfident in his abilities.
I will admit that one of my favourite characters in DS9 was actually Nog, to see him go from where he was in the pilot to becoming a very good starfleet officer in his own way.
Since I started my own re-watch a few months ago most of season 1 is still recent in my head so I can still share a few thoughts:-
Emissary - Solid pilot which I enjoyed more than TNG or Voyager mainly because it was different, in the pilot the station was 'broken' and not fit for purpose and getting the station to the wormhole in that condition showed that miles could be a good engineer since we did not really see that during his TNG run.
Past Prologue - this was largely a forgettable to me, in fact I barely do it's like my brain tried to forget it.
A man alone - This episode did show for me just how alone odo was, the bajoran's were just so ready to turn on odo I hated the bajoran crowd

but it also showed that odo was not really going to 'help himself' because of the way he would always handle things.
Babel - this episode never really got me for some reason, but it did serve to remind the viewers of the 'dangers' of the station and seeing odo and quark trying to run the station was funny and worth it to watch.
Captive pursuit - I must admit I did like this episode since I always felt that o'brien was always supposed to be the character you could relate to (which is why I liked most of his episodes) but this was also something that was outside of his normal scope of his duty, he was a NCO so while a senior NCO he would not have had much in the way of first contact practice, but also because of how he handled it, he took the side of the 'little guy' something that I doubt many senior officers with first contact practice would have done.
Q-less - now this was another episode I did not like, it was one of those episodes where I felt that the show was 'trying' to hard to gain viewers by having both Vash and Q there, in fact you could have not had Q and the episode still would not have played out much differently. When a episode tries too hard its always a turn off for me.
Dax - This episode was ok, but mainly because it gave us an insight to trill society and a idea of how hosts work from host to host, even if it did seem to contradict trills appearance in TNG (its been a while so I may be mis-remembering)
Move along home - I never liked this episode at all, in fact I usually skip it when I do a re-watch as because between a alien I don't take to and a almost pointless story its just not worth the time.
The nagus - I will admit that I don't actually remember the details of this episode, but as a general rule I never really took to the ferengi episodes, I know that other do so it's just my personal tastes.
Vortex - this was a ok episode and I enjoyed seeing odo's softer side for a change and the fact that his feelings will actually occasionally override his sense of 'justice'
Battle lines - there was just something not right with this one for me, I think it was because I was supposed 'feel' something for the kai but I did not so her remaining on the planet did not hit me, plus at this time in the series I did not care enough about Kira either to feel for her grief either.
The storyteller - while fun to watch o'brien and bashir together for really the first time, but the story did not make much sense to me as you mean to tell me that the cardassians allowed this 'practice' during the occupation?
Progress - a nice episode putting kira on the opposite side of the fence then she was used to, but I liked the b plot with Jake and nog more that the main plot for some reason.
If wishes where horses - a fairly forgettable episode in my opinion it felt cringe worthy from the start.
Forsaken - Another episode where I felt they tried too hard by bringing back Lwaxana Troi
Dramatis Personae - I have never really been keen on episodes where the whole crew is 'taken over' by a unknown entity.
Duet - now this was a episode to enjoy, one of the best episodes in the series and for the most part it was just 2 people in a room talking, I always felt DS9 was at its best when it came to emotional episodes plus some great acting all round.
In the Hands of the Prophets - now considering I hated Winn (I guess that was great acting on her part) and the fact I wanted to punch the TV everytime she made an appearance its a episode I never like watching, I mean can winn honestly expect keiko to teach something that she does not believe in.
OK so thats upto date if you managed to make it to the end you deserve a cookie.