If you don’t know who Four is that means you’ve never read Divergent and that’s a real shame. I’m currently reading Four, a collection of short stories about Four and I love it. Honestly, he was my favorite part of the Divergent trilogy and learning that Veronica Roth originally planned to do the trilogy from his point of view isn’t surprising.
Four is great because he’s such a sweet, dork who’s also really strong, brave, and kind of intimidating. Raised in the Abnegation factor by a terrible father, Four grew up with no friends and was used to being quiet, respectful, and selfless. Although being selfless is great there’s a big difference between being selfless and being pushed around and thankfully Four realizes this.
Of course, he’s also attractive but this isn’t something he capitalizes on. He’s not the hot flirt with a smirk. He’s kind of shy and doesn’t really know how to even talk to girls, much less put the moves on them. This only makes him more adorable.
The Divergent trilogy definitely has it’s faults but Four isn’t one of them. Check him out in the books (not the movies, although Theo James is very attractive) and prepare to fall in love.
“My name is Four,” I say. “Call me ‘Stiff’ again and you and I will have a problem.” – Four: A Divergent Collection
Zakiya N. Jamal 
Honestly I think I would have really liked the books better from his point of view, I was never a huge fan of Tris
Same! His parts were my favorite part of Allegiant. I understand why Roth changed it though. If she did it from his POV and started when he left Abnegation it would’ve been too long a wait for Tris to arrive and the action start. And if she just started it when Tris arrived it wouldn’t be right since it’s his POV.