15" macbook pro antiglare models 9cb7 vs 9cbb?

i'm curious concensus is. i've searched online , seems 9cb7 samsung anti glare model , 9cbb lg phillips anti glare model.

model superior? think 9cb7 on display gorgeous noticed small stuck pixel (pink) @ top center of screen. i'm going go exchanged hard me screen "pops" , colorful/vivid.

also, speakers perfect no rattle/shake when volume @ 100% on audio/video i've tested on far. before i've owned previous 15" macbook pro horrible speaker rattle before, i'm bit nervous exchange.

can chime in on anti glare 15" screen received , if black level/color good? or other people multiple exchanges can chime in on this?

 

where yo find information without taking laptop apart?

 

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