the correct answer is: one set of each
You are mistaken, friend. That verse is in II Oscillations 5:18. It's apocryphal, but still a good read."Always use the same spot style, unless they are different." I'm pretty sure that's a direct quote from the Old Testament somewhere. Leviticus?
I prefer different spots most of the time. It makes telling what chips are in pots and stacks easier.
Though some of the monochromatic same spot sets like the Bubs set are incredible!
Everytime I mock something up for a tourney set they end up on the same spot pattern.