I just got to spend some time with a LG screen that had a white point very close to my rMBP Samsung display and no other issues people have been complaining about. My impression was the the LG had better color saturation and blacks. I felt the image had more "depth", my Samsung looks a little flat in comparison. Now this is all subjective, but I'm extremely critical of displays ( I have many displays to compare with, IPS, SPVA ) all which have pros and cons. My point is people are going to like what they like, but if you get a good LG I feel it's really an awesome display, and after comparing the 2 displays and if had to replace mine, I would be happy with either ( providing no ghosting, yellow tinting, dead pixels and all other issues people have been reporting

). Last opinion, since I do alot of reading and coding I think the Samsung is more relevant for my use, but I would rather have the LG for color, imaging, etc, graphics work. I don't think people should be giving Apple a hard time for using both vendors since both displays when properly functioning are both awesome just a little different. I'm sure issues posted on these forums were not part of their specification for the display. I'm just constantly blown away by these displays. I thank Apple so much for pushing the envelope.
Just my 2 cents.