Because I really like OCaml, its very easy to talk to C code with it. Hmm, for me OCaml provides

1) Type safety

2) Native code speed

3) No C style memory issues, its a garbage collected language

4) You can compile OCaml code as a C library, then call it from C. OCaml in general has great C/Objective-C/C++ interoperability.

5) Predictable performance, no head scratchers.

6) Functional programming if I want to do that.