[skosch]

I don't know. Take a weekend and try out both, you'll learn what you like best. Both are great and frustrating at the same time, it depends on what you consider the bigger pain point. If you don't mind slow compile times, difficult JS interop, no JSX at all, lots of boilerplate, you can have code that is pure shining beauty and elegance (Elm) ... or you can have an absolute beast of an engine (Ocaml) covered in nasty duct tape with sticky residue and silver spraypaint on top (BS/ReasonML).

Give it two years though, and both will be amazing.