It isn't as clear cut as that. Many others have owned both and realize they both have their pros and cons. Countless threads on this issue. Calibrated LG is better than a Samsung.
https://forums.macrumors.com/threads/1499786/
https://forums.macrumors.com/threads/1389918/
https://forums.macrumors.com/threads/1195142/
https://forums.macrumors.com/threads/1197503/
I hope I get an LG on my MBA next week.
I know and I have contributed to a lot of those threads. Mountain lion actually helped the LG display out without a color profile. Owning them both side by side though I still have to say the Samsung looks better. It may be preference, but I think most would chose the Samsung. LG and Samsung screens aside, the airs just got the overall shaft in screens compared to the pro line and obviously retinas.