I don't think it's that clear of a victory; ARM is everywhere (and so is MIPS, to a lesser extent) and is commonly mentioned, that much is true, but there are far more ISAs that most people don't hear about in mundane embedded applications (of which there are many) - 8051, 6502, PIC, etc. which are definitely CISCs.

Also the x86 being "RISC-like" internally is a bit of a misnomer - x86 uops are much wider (118 bits for the P6, even wider for later models) than most RISCs' fixed 32-bit instructions. Modern RISCs like the ARM Cortex series also decode instructions into wider uops.