I rarely directly recommend screens, since people are so different. As you say, "one display to rule them all" is hard to find. There are no perfect displays no matter how much money you spend. One person can find a minus about a screen to be minor and uninportant, while for another person its a dealbreaker.
There are two things you should especially look at before purchasing an Eizo or NEC of their PVA based models:
1. Are you sensitive to input lag? Even Eizo's advertised "lag free" screen, the
HD2441 has 40ms of input lag. The NEC 2470WNX I believe have 33ms, which is average for non-TN 24" screens. I have 33ms on my 2690WUXi, but I'm not sensitive and don't feel it has had any negative effects on my ET: Quake wars gaming. For others, this might be a dealbreaker, so you need to see how its like for yourself.
2. PVA have some problems with viewing angles. This is also dependent on the user how intrusive it feels. Let me give you some links to see. Just remember that camera's pick up the changes faster then eye's usually, so its not that extreme for most people.
Black crush at center due to viewing angles:
http://www.youtube.com/watch?v=CZnaMex2FUo&NR=1
Look at color shifts in face and the apperance and disapperance of the headrest behind the boy here:
http://www.youtube.com/watch?v=sC7EozTCGSQ
You can calibrate the center to get pretty good on the newer Eizo's, but there will still be a shift even at center view vs. sides.
Here's a high-end Eizo:
http://img220.imageshack.us/my.php?image=eizocg241wcolorshifthq1.jpg
For most people, this is minor and not so important, but you should check how it is for you. :) From Eizo, I would still advice the HD2441, provided that you are not sensitive to image shifts and input lag. :)
The NEC 2470WNX got a favorable user review from a person here at WSGF:
http://www.widescreengamingforum.com/forum/viewtopic.php?t=10084