Questions regarding screen size

I have a question,what monitor size is the best for average eyefinity gaming?(and some work of course)

What aspect ratio is the best ( 16:9.16:10 ) 16:10 is either 2560x1600,1920x1200 or 1680x1050.

Right now I want to buy three monitor,and I'm most likely never change my display again ( at least in 3-5 years )

I don't need monstrous size like 27",so from a user perspective,what's the most commonly use screen size for single monitor and triple monitor?

around 20"-23" is about right for a triple monitor setup. 16:10 has a few more pixels than 16:9, that's all.

I'm running at 2560x1440 on a 27" monitor - it's got so many pixels I can run facebook side-by-side 2 1/2 times with no problems.

If you are going to go triple just get some 1920x1080 monitors - there is plenty of pixels on here and videos don't really go above 1080p anyway.

22-24" 1080p

Not all games play well with 16:10 and if you ever want to do any recording or anything forget about it.

NOT TO MENTION HOW HARD IT IS TO FIND GOOD 16:10 MONITORS AT A REASONABLE PRICE

sry abt the caops, i don wanna retype it

Ok...23" 1080p monitor then.

a 24" 1920x1200 IPS or PLS panel would be my ideal monitor.  

There's nothing wrong with a 16:10 monitor even for gaming.  Not sure why that was brought up at all.  I stream 16:10 aspect games at 720p no problem.  It looks great, actually.

Is AOC monitor good enough?

Currently I have a 18.5" 1366x768 monitor. and 1366x768 monitor at the same size is just $65 here. so....should I get 3 1080p monitor or should I add another two for my current setup?

Extreme 720p is 16:9 meaning your video is stretched.