X1 ! it's short, simple and sounds good!
Just try speaking.
Xbone > it's vocal, but disrepectful as hell.
X1 > sounds perfect, simple and short. Like when you say "i want a 360 " or "i want a PS2", sounds nice.
XB1 > good to write, but it is not as vocal as X1, X1 is much more natural.
other > they are just inferior opitions...







