Honestly I like neither. I just never liked the idea of Zutara. Especially because I watched movies like La vita et bella, Hotel Rowanda, one that was called something like Rosebud, and some others around the first season avatar time.

Reasons in each season:

It was a season of pure persecution, emotional trauma, constant attacks, and bad scars among those two. Even more so because one represents the institution that (if you think it of of nick)it was genocidal and most likely with rape, humiliation,murder, and torture and the other represents the group that's being oppressed.Sure Zuko never did that horrible part, but he did tried to serve the avatar to his father (hello, same as killing him) and that way eliminating Katara's only hope and he did humiliate Sokka in a way.

Now season 2 had a chance. Zuko got a **** slap from reality. (Gasp) Other people suffer too. I liked Song because it showed a little part of what Nick's been hiding about the war because, heck, it's a kids show. Same as that kid Zuko helps. So when he faces Katara Zutara did have a chance. He won Katara over, but the dude backstabs her, attacks her with all her might, joins the girl who was persecuting them now, stands there as Azula almost kills Aang (who is Katara's best friend at this point)and destroys Katara's chances of stopping the war with the help of BSS and also he helps spread further chaos and oppression into the land. That was the last they've seen eachother.

Now season 3 brought Maiko and lots of Kataang hint. Now Zuko left Mai, but what did he say in the letter? For all we now he said: "Love ya baby. When I finish this business with the avatar I'll be lord, you'll be queen, and my sister will clean our shoes" and also Katara might like Aang back.

Even if Zuko leaves Mai and Katara doesn't respond to Aang I don't think that 9 episodes are enough to just make these two forget their feeling about the ones they've left, get rid of all the scars, the baggage, and come to like each other that way in such a short amount of time! It's madness to me.

I don't doubt they'll forgive Zuko, but "true love" takes a lot of hard work in itself. To make it grow where only chaos, madness, hate, and betrayal has grown is too much for just 9 episodes. In season two I would have been as indifferent as I am with every other ship.