1920 x 1200 , will give you a small border top and bottom of the screen , NOT a large one when watching 16:9 movies (anyway most DvD/blu-ray movies are 2.35:1 so you will get bars anyway!)
1920 x 1200 is the right size for 2 A pages to be displayed on screen side by side , 16:9 chops off the bottom of them
As I have access to loads of screens of different lcd's with different sizes , I have actually had a chance to compare them side by side in daily use.