I think there are a couple of reasons for picking RISC-V over others. It is the youngest of the lot, meaning it is carrying around the least legacy compatibili

I think there are a couple of reasons for picking RISC-V over others. It is the youngest of the lot, meaning it is carrying around the least legacy compatibility stuff while still incorporating a lot of modern design lessons. Additionally, modern ARM and MIPS are not free and (potentially?) patent encumbered as well. You could go with some old, free MIPS or ARM, but then how good is performance, and how good is compiler support for these nowadays?