I don't normaly post in here, but for what it is worth...
I was the product design manager for an engineering consultancy specializing in plastics. Both G10 and phenolic are considered polymers in industry. They are reinforced, but so are many injection molded plastics. I understand why a person might not think of them as polymers because most folks don't have a lot of exposure to long fiber and thermosets, but they're polymers as much as a tomato is a fruit.
Also, I buy a lot of 3V. I think the price is pretty similar to S30V. It machines and processes better, so it is a less expensive material to make knives from, IMO.
S30V only has better edge retention than 3V in specialized cut testing involving abrasive media and low cutting forces. In reality, 3V has much better edge stability and doesn't dull from chipping or rolling as badly as S30V, which has a large carbide volume fraction and issues with stabilized RA. For most people who use their edges harder than opening cardboard boxes they will find better edge retention in 3V at HRC60-62. Also, 3V can be used at higher harnesses than S30V without durability concerns and tolerates a thinner edge.