English is full of idiomatic exceptions - forget about rules (that mostly don't exist).
We are participating in International (simplified) English (aka Globish) so let's make it simpler for the majority non-natives (native English speakers are minority ;)
I prefer Eg. or Eg: list,...
I also prioritise international words/symbols, so never use one, two, etc, when it's international (inc. maths) 1 so visually easy.

Is English alows international words & sybols (accented letters), then why not use shortcuts as '&' for 'and', etc?
When it comes to choice of 10s of synomyms, I prefer international (Latin) & regarding pronounciation also more phonetic versions, eg: Da(h)ta, not D(ei)t(ei), if you stick to bot A pronounced consitenlty...
Have fun & add Esperanto for much more simplification & universal communication with the future Robots (billions of them).

Did I tell you that based on Esperanto I avoid articles a/an as obsolete or even ambiguous? If I used them, let me know :)