@HosStyle - What you mean by "materials" is somewhat ambiguous. I'm guessing you're trying to rank the different types of chips, but even what constitutes a "type" of chip can be ambiguous.
Probably the highest level of classification would be:
Mass-market plastics
Enthusiast-grade plastics ("china clays")
Ceramics
Casino-grade plastics
Clays
... but most of those can be easily divided into more granular "types". Consider clays:
TRKs
CPCs (and ASMs and Burt Cos)
BCCs
Paulsons
But we can be more specific still:
TRKs - leaded
TRKs - non-leaded
CPCs - weighted
CPCs - non-weighted
BCCs
Paulsons - leaded
Paulsons - non-leaded
Each of those seven types uses a different type of material, although we call them all "clay". The clay formula is a mix of stuff including plastic, clay minerals, fibrous material, dyes, and other stuff that we don't even know about, and each of the above has a different formula. In fact, every different
color has a slightly different formula, although the all colors of one manufacturer have fairly similar formulas, and every manufacturer's formulas are very different from every other manufacturer's formulas.
You can do the same kind of detailed breakdown for casino grade plastics (Bud Jones V2s, Bud Jones V7s, Matsui ABS, Matsui non-ABS, and Abbiatis are all made from different plastic formulas and all feel quite different from each other), for ceramics (Chipco, ABC, Sun-Fly, and Tina all are different), China clays (Majestics, Milanos, and Spirits are all different), and even mass-market plastics (dice chips, Outlaws, and Monte Carlos are all different).
So your question is very open-ended and perhaps not very well specified, perhaps moreso than you realized