As an Elixir enthusiast I would say, if you prefer Erlang to Elixir or is more experienced with it and will be building web stuff Elixir is one more dependency

As an Elixir enthusiast I would say, if you prefer Erlang to Elixir or is more experienced with it and will be building web stuff Elixir is one more dependency which could br avoided. I like Elixir. Not all Erlangers do. Also, this mentions being something of a CMS. Phoenix is not that.