Best source to download Dolphin from?

Seems like there are 2 different places where the dolphin core can be downloaded from. The regular downloader/buildbot and this link:

In that link there are a few other cores as well, like Desmume. So the question applies for those as well.

Which cores are the ones that should be used? What are their differences?

That’s a repo I set up for automated builds during the buildbot downtime. I don’t think there’s anything wrong with them, but there’s no reason to use them vs the official buildbot ones.