depends on the games you're playing and your personal preference.
extremely competetive games, like shootmania or counterstrike might profit off 240Hz
most games that have some pace, like general shooters, sports games, racers like a high refreshrate but also when come with graphics that really shine with higher resolutions.
if you're mostly playing strategy games or even most RPGs, sandbox games, or generally games that have no pace at all but are rather pretty, resolution just gets you far more in this games than refreshrate.
but there's also personal preference. some people are more receptible to resolution, others to refresh rate. a friend of mine plays on 27" 1080p which for my taste is too low resolution for the size. He...