Which has "seniority": Commodore, Fleet Captain or Rear Admiral (LH)? I know that IRL, the rank of Commodore was done away with, and that Fleet Captain does not exist. But wouldn't Fleet Captain be the technical replacement for Commodore for Starfleet? It was certainly used during the Dominion War Arc in DS9. Side note: in TMP, Kirk should have been a Commodore, in keeping with the tradition of Commodores being "sketchy" about their actions (J/K).