I love EVERYTHING about Zelda Dungeon... I can't even choose just one thing.
First of all, I love the Zelda news. I have to check ZD every day for new updates in the fandom of my favorite game series, and I've read some VERY interesting stuff here. I love the articles and news posts and fan works and everything.
Second, as several people have mentioned, this is one of the best forum communities I've ever seen. I was part of a forum about a year ago that I thought was amazing, but ZD changed my view on it completely. You guys are just so incredibly friendly. I've seen so many new users find a home and become integrated in the DGN family in one way or another – it's unbelievable. Plus, I'm able to chat about Zelda without being judged or ignored, as my friends in real life do (well, maybe the ignored part is still here, but I at least FEEL loved
). I'm extremely passionate about the series and I have yet to meet another person irl that comes even close to understanding. Here there are many people who actually know what I'm talking about whom I can have pleasant conversations with, and they offer so many new points of view or pieces of information that it's just... absolutely fascinating.
And lastly, I love the wiki. ...I know that's a bit of a strange thing to like, but... It's my favorite pastime and a fantastic way of sharing my love of the series. And the other contributors to the wiki are so nice and fun to be with. I was kind of stumbling around ZD looking for a place to belong, and then I was invited to their group and now I feel right at home here in ZD as a whole. Since then I've become a lot more active on the forums and site in general.
Ironically, out of everything the site has to offer, I think the walkthroughs are my least favorite, just because I'm self-banned from using walkthroughs.