It's been settled: RISC > CISC. The only CISC architecture still around is x86/64, and only for legacy reasons. Every other major architecture is RISC. Hell, even Intel CPUs are really RISC; they convert the x86 instructions into a simpler internal representation.
There's little point to choose one as people don't code to architectures, only platforms. Your compiler would probably generate better code than you do.