Going from a 60hz to a 120hz is like going from 30fps to 60fps.
Came to post this. That's the first thing I prioritize, and it's hard to find an IPS with that (or was, when I was shopping last). So it kind of depends on if you want amazing colors or the 144hz. I play a lot of twitch games so tend to prefer the latter.
Irony is a maginot line drawn by the already condemned