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There has been a datacenter that keeps track of various HDD models and has published results for the last several years.It seems to be a personal thing and if I was to take a scientific approach . . .
BackBlaze HHD Stats. This is about as close as you are going to get to "science". WDC and HGST look good but a single drive failure, in a group of relatively new 4TB Red drives, may have skewed the results. Without that one failure WDC/HGST would be an obvious winner.
I use Black WDC drives at home and feel the up-charge, compared to Blues, is worth it for me