I don’t want to get into a debate about monitors, but suffice it to say I think three low resolution monitors vs. two higher res monitors is a waste of time. You could buy two pixel perfect Korean 2560x1440’s for the price of all three 1920x1080 monitors. Google QNIX.
There are downsides to that of course being you could get a lemon without a proper warranty, but I am biased against 1920x1080 in terms of productivity. 1080p is a horrible resolution to have a CAD package open, UE4, Photoshop, a DAW, a time-line based editor or any piece of software with a lot going on interface wise.