Lesson everybody: avoid anything with a 14" screen!
This is indeed true, but the people who hang out here mostly know this already, I suspect. Go down to 12" and you get some IPS displays, because there are tablets in that form factor which need it for the viewing angles. Someone else also figured out that the 12.5" X220 IPS screen appears to be cut from the same glass as iPad screens, so we have Steve Jobs to thank for that. There have of course always been IPS and PVA tablets, but the low price and availability of the X220 IPS panel probably really is directly due to Apple.
Go up to 15.6" and you get workstation machines that are actually designed for graphics work, so there are some good screens there as well.
The best source for laptop reviews by far, I find, is notebookcheck, because they measure screens for one thing. But while the 1600x900 15.6" screen measured well there, as far as I remember, I wouldn't count on there being no changes in production. I have the impression that, as that resolution is becoming more common and prices are going down for it, the quality of screens is going down as well. I have no first hand experience of this, but judging by some comments in this forum. At least with the 1920x1080 FHD screens Lenovo advertise they've got 95% color gamut, which presumbaly means they have to stick with quality screens.
Looking elsewhere, notebookcheck reviewed the Samsung 900X3B very highly, for example. What's interesting is that Samsung have apparently developed their own PLS technology as a competitor to IPS. I always thought PVA was a Samsung invention already. They are really emulating Apple with some of their designs, but at any rate, it's great to see some movement in screen technology after the indifference in so much of the mainstream laptop market these days.