I would suggest neither in your position. I suggest trying a language like F#. F# started as with the idea of developing a language with OCaml like syntax and semantics for the .NET platform. Since then its evolved to being a mature, elegant and robust language. It can run on Windows and Linux.
Advantages over OCaml is I suspect a much larger footprint and the ability to tap into all of .NET (huge ecosystem). Plus your skills will be more portable than Haskell or OCaml.
Both Haskell and OCaml are exceptional languages but the ecosystem and market footprint is not great for either. Jane Street has done a lot to evangelize OCaml but it hasn't really moved the needle. Haskell is probably the most different being a lazy functional language. Definitely learn it but using it in real life will be harder.
Advantages over OCaml is I suspect a much larger footprint and the ability to tap into all of .NET (huge ecosystem). Plus your skills will be more portable than Haskell or OCaml.
Both Haskell and OCaml are exceptional languages but the ecosystem and market footprint is not great for either. Jane Street has done a lot to evangelize OCaml but it hasn't really moved the needle. Haskell is probably the most different being a lazy functional language. Definitely learn it but using it in real life will be harder.