PC microarchitecture is RISC now

Everything is RISC now outside of weird old microcontrollers still in use but that doesn't tell you much about the actual substance of whatever is being described as RISC

I like MIPS for being a (mostly) clean and simple implementation of RISC. MTI tried some very interesting ideas out for a while (superpipelining, delay slots, using optimizing compilers rather than making machine code easy to write for people), and while a lot of these failed or were abandoned, many of them just became common practice