Display Enlightment by NCX

buonasera NCX scrivo dalla italia volevo un consiglio  su quale di questi monitor acquistare   Viewsonic VX2458 -Iiyama Prolite XUB2492HSU-B1  -Philips 246E7QDSW - AOC 24V2Q - Philips 245C7QJSB

The English language is used on this site since it is the only one I understand.  I used a translator to hopefully understand what you are asking, which is what to buy out of the four monitors listed, which is a question I can't easily answer since the Viewsonic uses a 144hz TN panel while the other three use 60-75hz IPS panels. 

You're going to have to decide if viewing angles and image quality is worth sacrificing to acquire 144hz from the iiyama which uses a TN panel.  I would buy the AOC since it natively supports 75hz, but make sure the gamma to mode 2.