The middle one looks like Cherry's newer profile that they use for the MX-Board models.
When people say "Cherry Profile" they mean the profile used on Cherry's older models. That profile has been copied by several others.
Signature Plastics' DCS profile is almost like "Cherry profile" except for the bottom two rows that are a bit more acutely angled.
ABS is not a type of profile but a type of plastic. It is the most common plastic for all kinds of computer equipment ... but it does not stand up to repeated "abuse" as much as PBT, POM and polycarbonate - which is why the other plastics are in demand by people wanting high-end keyboards.