I'll give you my own brief opinion.
-Using bsdsocks/winsock is not really worth it, using something like SFML's networking is a great deal simpler to use.
-SFML does not provide its own low level UDP -> TCP features, like ENET.
-Binaries SFML network library provides support for transporting more complex data types (like multiple dimensional data structures) and a few other nifty things - but it's a bit more complex to implement.
-SFML's networking is very easy to use, the only hiccup is that you need to really do a bit of multi-threading on the server.
I've used the top three libraries mentioned above (bsdsocks/winsock, ENET, SFML network extension library), yet I only see SFML's as a truly portable and simple-to-use approach for the essentials.