I was really into Prolog back in the university days, to the point of being into logic programming competition between universities.
Got to understand Erlang at the first try, when reading about the language or watching web talks.
It pretty much depends from where one is coming from.
In terms of elegance, I've never written anything that surpasses Prolog.
For a defined subset of problems.
Also most companies HR departments will ignore CVs without an EE or CS degree from those same universities.
Also learning erlang was much easier when you had some basic idea of prolog. Clauses did not seem so weird and once you understood how clauses work you've basically got 80% of the language nailed.
What I don't really understand though is why erlang didn't go all the way. Why take only surface level features of prolog and ignore the really cool parts?