Crew Necks VS V-Necks

I prefer crew necks too, but they have to be fitted and fine gauge. If they are loose or thick they make me look too boxy. However, I have very narrow shoulders and wear a 30B bra, so I have a pretty small upper body. V-Necks are much more universally flattering.
 
I like crewnecks, I have a small shoulders, but large boobs. Maybe I should be wearing more V-necks, but crewnecks are more classic and I'm always going to be in the rut of choosing the more vintage option of anything.
 
I love, love, love j. crew's crew neck sweaters. I have them in like 5 different colors! I have small boobs and I am so pale that I hate showing skin in the winter- I feel like I blend into the snow!