The business analyst should find a middle ground where both stakeholders are satisfied with the field names, as this would ensure that the requirements are accurately captured and reflect the needs of the business. The business analyst should facilitate a discussion between the stakeholders to understand their perspectives and preferences, and help them reach a consensus on the field names. This would also foster collaboration and trust among the stakeholders, and avoid potential conflicts or confusion later in the project. References:

Learn About the Salesforce Business Analyst Role: This reference explains the key activities and skills of a Salesforce business analyst, including communication, elicitation, documenting requirements, and analyzing information.

Field Names: This reference provides guidelines on how to format and display field names in documentation and user interface text.