Greeting!
I am curious how many of you use VATS system?
I for one never used it nor in Fallout 3 nor in New Vegas, i just prefer to rely on my own skills and even though i enjoy RPG component of a Fallout i still prefer to play it like a shooter, because i find it more immersive.
Plus let's face it, it makes fights much easier, especially if reloading a weapon still not cost any action points.
PS : There is one assumption i am making, i think Fallout 4 will have true iron-sights, like in New Vegas.