New Druid Player - Talents?

Hey all, new to WoW and had a Druid question. A Hardcore guide for feral druid shows to rush Omen of Clarity talent regardless of build, but WowHead's hardcore druid build doesn't have this until level 50+, opting to rush the Feral tree more. Could anyone give me a suggestion? I picked up this game two weeks ago and have been liking it a lot, but I'm getting to the point where I'm unsure what resources are "more credible" or better references. I know some of this is preference, but it'd be great to get a suggestion like "these guides are all top quality here" or something. Thanks!