which one is the better option?

it's all preference and what you like more, I personally prefer Void a bit more then Demon.

Void goes good with most things, demon does go good with thigs too but I think void is easier to match sets and other colors with so probably void tbh

Demon bro

azurite

Personally, I prefer Demon. I think it looks better than just black (unless you're looking for all/most of your tori to be the same color), goes good with pretty much every other color, and it's even cheaper. Demon force is one thing I'll never get rid of.

void4days

Void4weird Demon4life

It really depends what lax it is with, but I'd say demon goes better with the pyro mask and dreads

Void is poor man's Demon; same QI, different price.

Don't be a broke ass pikey, make the sensible choice