This thread is pointless.
There isn't much difference in the SSD or LCD panel worth bothering about. I had the original Apple branded Samsung SSD and it was crazy fast but 'slow' compared to today standards. A ~10% difference in a benchmark for a fast SSD is pretty irrelevant.
Trying to determine if your LCD isn't quite as good as someone else's means your display is fine. If you have a dud, you will most certainly know. If your colours look 'off,' calibrate your display. I happen to have the LG and after calibrating by eye, it's now much more appealing than the default with better contrast and saturation. The fact is, these are not premium displays but for TN panels, they are about as good as it gets.
Quit being paranoid and enjoy your new machine.