I like the look of Elixir over Gleam for sure because:

• Elixir allows for more flexibility and faster prototyping. • Elixir's ecosystem is superior and more mature. • Elixir compiles to BEAM bytecode whereas Gleam compiles to Erlang which then compiles to BEAM bytecode. • Elixir supports Lisp-style macros. • Elixir excels at web development, data processing, and distributed systems. • Elixir's OTP implementation is better.

Since Gleam doesn't support macros, my guess is that Gleam isn't going to be able to run Phoenix-like or LiveView-like frameworks, but I haven't really looked at it, so I could be wrong (edited because what I said wasn't clear, and probably still isn't).

I don't mean to knock Gleam, but it feels to me like a project that came about to add static typing to what Elixir already does, and while it has accomplished that, it has failed, so far, to live up to all the other great things Elixir and Erlang do. I know it's still a young language, so maybe someday they'll get there, but they're not there yet. After coding for 33+ years, I just don't find static typing to be all that compelling or important to me, so I would never choose Gleam over Elixir as things currently stand.