Ask HN: 2x24" vs 1x27" (2560x1440) Which Monitor configuration do you prefer

I currently have a 30" + 20" setup and a 27" at home. I find that I prefer the two screen setup even though 95% of my attention is on the primary screen. It's nice having "unimportant" stuff pushed off to the secondary screen (Skype, music, other chat stuff, etc.) and maintaining the feeling they're "there" physically but not in my face. It's mostly a psychological thing for me but that's still important.

I have found, and find, portrait mode to be maddening on all screens on which I've tried it but I'm fussy over visuals. Subpixel text rendering works best with the pixel shape in landscape and has somewhat less fidelity in portrait. As a UI developer, this might be even more annoying to you since what you see won't reflect what the majority of your audience is seeing (though it rarely does, to be fair).

I prefer having multiple monitors. The bezel is not an issue for me. I like the ability to compartmentalize in different monitors for different tasks. But I have used a primary (larger) monitor as my main monitor and a side monitor for accessories. The dynamics may be different with two equal size monitors.

I use 27"+20" at home and 24"+20" at work. I can say for sure having two monitors feels much better - I can dedicate one monitor to terminals and other for web and documentation. Having two also helps in quickly maximizing a documentation window in one monitor without obstructing the main working area (terminals) for me. I used these monitors in landscape mode and end up splitting the width of the screen into two or three terminals. 27" monitor felt huge at the beginning, but was pretty awesome once I figured out windows placement which works for me.

I used to have a 2 x 27 and 2 of the high pixel density Samsung 23" displays. That was a killer setup.

At home I have a iMac 27" + a 27" cinema display which works well, but still not as nice as my old four monitor setup.

From the back: http://www.flickr.com/photos/ethank/4364175082/

a pano: http://www.flickr.com/photos/ethank/3971556051/

I used to swear by multiple monitors, but work took back my secondary monitor then I "adopted" a 30" HP that wasn't being used, and am now 100% converted to using a single large monitor and loving it. The fact that I can scatter differently sized windows around my view area depending on what size they require, and how much of my attention they need, has definitely increased my productivity. I also like that i'm not always turning my head left and right as much.

My home PC, which I rarely use, is a single 27". My work is 2 24". The most productive I am is on my 13" air.

The size of a 27" takes a couple hours to get used to, and then ur ok. My original intention was to get a 19" and rotate it next to my 27". Dell (which i'm a fan of when it comes to monitors) sells 27" which are as high as 19" are wide, making it quite seamless.

I have 3 stations. 2x (2 24") and 27". One 2 24" is landscape portrait where the the other is dual portrait. I think I prefer having two monitors. It is really nice to have a terminal window, docs and IDE open all at the same time. Having the code on the vertical portrait monitor is nice (140+ lines visible at a time).

Bezels were never a problem for me.

Of the choices, I'd go with 2X24" since having a second screen for non-essentials, searching the web for info, comparisons is nice. I wouldn't worry about 27" being too big. I'd even go with a 30" for a primary and tack on a secondary to fit your needs.

I would probably choose the 27" I currently use 2x24" and the bezels get incredibly annoying when moving things from one screen to another (which I do often).