I'm defining coding conventions for Progress OpenEdge in our company. In this language one can use symbols or keywords for operators, both work the same. For code quality purpose (code review, code readability, ...) it's a good idea to select one preference.
I consulted code conventions from other companies. They all had the rule: use symbols. I simply copied this rule BUT some developers start holy wars to use keywords instead.
Is there any best practice in this respect? What to choose, symbols or keywords?