I thought that while JMS oversaw all of B5 and wrote the broad story arc, he did not write most of the episodes.
Creator and showrunner J. Michael Straczynski wrote 92 of the 110 episodes of Babylon 5, including all 44 episodes in the third and fourth seasons;[63] according to Straczynski, a feat never before accomplished in American television.
[1] https://en.wikipedia.org/wiki/Babylon_5#Writing
Creator and showrunner J. Michael Straczynski wrote 92 of the 110 episodes of Babylon 5, including all 44 episodes in the third and fourth seasons;[63] according to Straczynski, a feat never before accomplished in American television.
[1] https://en.wikipedia.org/wiki/Babylon_5#Writing