Neither. Those are 1080p 27" monitors. Text will render bad on those. For a console (which the BenQ is designed for) that's no problem. All you do is run a 10' GUI and game anyways. But for a computer and windows, forget it.
Stick to a 24" 1080p or up to a 27" 1440p.
All specs being equal I'd tend towards a BenQ over an Asus monitor. Although Asus is on my list of would buy monitors.