IMO run RG6QS, because IF you or someone ever uses it you don't want it to have to be replaced due to going cheepo.
Also I'd go ahead and use some keystone jacks to term them, if you just leave it in the wall only you will know its there.
I'd just go ahead and get a small electrical box and a grounding block
Might as well do it right instead of half-a**ed so if you or someone ever want to use it you don't have a sat or CTV installer just doing their own thing because your work wasn't done or was forgotten about.
So I'd put a grounding block where ever you imagine a CTV might come to enter the home and ground it to the breaker box.
Then have a cable from there go to the attic (or basement) and have a small electrical box (or whatever you want to use to organize the cables)
No need to term the ends at the aggregate location just be sure they're tidy and its clear what is what.
Then if/when you want to use it its ready to easily be finished and used.--