Use comparisons when one transcript has multiple destinations
A caption workflow usually starts with video, then splits into format choices. If you need both captions and an editable transcript, start with VTT vs DOCX. If the question is broad caption support versus web-native captions, use VTT vs SRT.
Document workflows have a different tradeoff. Choose DOCX vs PDF when the transcript moves from editing to final sharing, or TXT vs DOCX when you are deciding between lightweight automation and collaborative editing.