Here is the repainted NWA 747-400 in Delta livery:
Now, compare that with the old (er, still "current" on some aircraft) NWA livery:
Or still, compare that with the livery of Virgin Atlantic, another large international airline:
So, which livery is the hardest to read at a distance? And which livery is the least imaginative/creative? The answer to those questions should not be Delta, which is now the largest airline in the world.