Which one should i get?

[Sabir]

Dell 27 Monitor S2718HX

 vs 

Dell 27 Monitor : S2715H

 vs

HP 27es ?

Which one should i get? And why? 

 I want better solid quality product , beautiful images quality and long lasting. I do mostly gaming , movies , YouTube and browsing. I will buy it for temporary because i will get Asus Rog Swift PG35VQ next year January for my ultimate gaming. But why Dell S2715H and Dell S2718HX is more expensive than others 27 inch monitor? Also which size is better or perfect for 1080p because of viewing distance?  

27 inch, 25  , 24, or 22 ?

Most of people said for 1080p 24 inch is perfect. But if i buy 27 inch 1080p monitor is it good from 1.5 foot or 2 foot for viewing distance? Can i notice any blurry or something? How much distance should it be? 

And what is pixel pitch?

In 0.3114 mm is better or 0.3340 mm is better in 27 inch? Can anyone please explain? 

Any help will be appreciate. Thanks in advance ? ( Check this 3 monitors here?? scroll down)