How can we compare expressive power between two Turing-complete languages?

I wrote a Turing complete language / interpreter on top of Python.

Turing Machines

Ted: Tool for editing files according to the rules of a provided Turing Machine

Is a computer with a multi-core CPU, or multiple CPUs, *multiple* Turing machines?

Quarkdown: a powerful Markdown-based Turing-complete typesetting system

C99 doesn't need function bodies: VLAs are Turing complete

Turing kicked us out of Heaven (2023)

How did you do on the AI art Turing test?

Demis Hassabis is claiming that traditional computers, or classical Turing machines, are capable of much more than we previously thought.