If you value motion quality then Lightboost Tn panel ho! Though, there are some big disadvantages to a TN panel in general, and adding Lightboost on top of that to some is the last straw as it messes up colors and all of that.
But which 144 Hz from Asus were you pondering? There are 3 I know (maybe more) 24" VG248QE, 27" VG278H, 27" VG278HE.
I haven't had the chance to try the overclockable Korean monitors yet, though from what I've heard it's pretty good and leagues better then my U2711 @ 60Hz, that's my only other monitor I have to compare to my TN panels, and non Lightboost. If you like color, hate viewing angle distortion, and watch movies on your PC regularly, you are better off with the PLS panel.
On this PC of mine it is pretty much gaming, so 120 Hz Lightboost Surround has been perfect for me despite TN panel shortcomings. I wish I had someone nearby with one of those Korean panels so I could just see how it looks in person and get a real opinion on it. Reasoning is because even regular 120 Hz on my panel I notice the blur, or trailing, whatever it can be called in games, so I wonder if I would notice it on the Korean monitors.