Third person omniscient--"He/she" is used by a god-like all-knowing being who can see in every character's mind and sees all the action even when some characters aren't present.
- Pros--the readers aren't lost at all or have to connect the dots or make guesswork of character intentions. It is clear-cut and allows the author's personality to come through. It is pretty easy to do as you are the one telling readers a story.
- Cons--a major con is something called head-hopping. This is when an author jumps from one character's mind and thoughts to another character's in a way that makes it too confusing for readers to know whose head they are in. I've noticed some great authors have large spaces, chapter breaks, or asterisks to mark this shift for readers to prevent this. Another con, for me at least, is it doesn't create as much mystery or tension. Imagine if Harry Potter also included Dumbledore's perspective? We'd know the end of the series by book two. The fix for this is to not use omniscience or plan a story not based on the need for mystery, suspense, or irony.
Popular YA novel in all omniscient POV--Honestly having trouble coming up with any, after researching as well. The internet (or people on it) doesn't seem to get the difference between limited or all omniscient. This suggests it was only popular in the past or in for novels reserved for adults which makes me conclude it is not often used. Articles about the lack of this POV are out there suggesting the cause is due to it distancing the reader from the main character. This ability to connect to the main character seems paramount in YA lit, almost a necessity.
These POVs aren't set in stone. In fact, a lot of authors in out post-modern literature times mix them--Ender's Game, The Book Thief, Upon Broken Wings, and many more. This mixing of POV seems to prove equally popular as first person, so much so I had to actually research books with limited or only omniscient person (without first mixed in). What writers can get out of this is do whatever you want, experiment. If you want to take the safe route go with first person. It is the most popular and teens can relate better. But if you want to be unique try something new. As long as the reader can figure out whose head they are in throughout the book, you've done your job. This makes me want to experiment right now.