It's a bit early to figure out which will come out on top, but so far the better recipe places include YG, FFXIVOrigin, FFXIVRecipes and Eorzeapedia.

Something tells me that Eorzeapedia will win out over the long run, but it's a bit early to say. Their forums are a bit meh, but the wiki has more pages than the other FFXIV wikis out there from what I've seen so far. It's really good for general information. FFXIVCore has a lot of people on our server (Lindblum) and also has some pretty good forums, so it's not a bad shout for the long run either, but I'm not sure the heart of the place is in it - it's go a large amount of complaints compared to other places when it comes to the way FFXIV works and also is more of a company thing... the place is made from a group of people who have a lot of MMO forums and sites out there, while other sites seem to be more FFXIV-fan-specific. I'm not sure which of those two options will come out better off, mind you, as they both have pros and cons.

All of them have a lot of missing pages, but as I said, it's a bit early just now to figure out which will win everyone over.