I disagree with Archangel's Staff. It doesn't really benefit for Nidalee especially since cougar form doesn't use mana. I could use this space for something that will give AP AND defence capabilities that I otherwise couldn't get from Archangel's Staff. Otherwise, this guide is alright, though I'm quite sure you could put more information here.

This might work in normal, but not in ranked against decent players.
You are too squishy, and Lich Bane is way better, especially if you go so AP heavy.

Thanks for the feedback. I took your suggestion about Teleport. I have been using Guinsoo's Rageblade lately anyway so I changed that in the main build as well. The spear still hits hard enough to harass and finish off enemies, which is my goal. I'll add a note about that and try to make the guide more visually appealing soon.

You should try to explain ideal places where Nidalee can Pounce over the walls, not to mention, I think you should consider putting Guinsoo's Rageblade in the main build, when considering you are going hybrid. Not to mention that Trinity Force is the only item you have with AD in it at all. And that's not a lot of AD. You get your AP very late, which makes your spears very weak, except against extremely squishy characters. Your runes are fine, but you might want to take the improved Teleport in the Utility Tree, as you have chosen to go with that in your main build. The improved Teleport is in the very first part of the Utility Tree.

I hope this helped shedding a little light over things. Also, check this out:
http://www.mobafire.com/league-of-legends/forum/build-and-guide-discussion/searzs-informative-and-awesome-looking-guide-template-4336

It's a guide to make your guide look good. I suggest you follow this if you want your guide to look good to the eye, and also making it more interesting to read, making the viewer wanting to read further into it.