My thoughts on Rick Berman.
He helped or was directly involved in getting 624 episodes across 4 series of 25 seasons and multiple movies made.
Comparison of episodes, longest running producers:
STARGATE: Brad Wright, 354
DOCTOR WHO: John Nathan-Turner, 170
SUPERNATURAL: 327 (Combining all their episodes by the end of this last season, though there have been 5 showrunners.)
No other person in any other franchise has come close.
Despite some flaws in some decisions he has made, STAR TREK as a franchise really grew during his era. He also hired some really great people, who in turn brought really great episodes to the table.
My verdict: he did far more good than bad.
Addendum: I just calculated. If I were to coubt the ARROWVERSE, which I have never seen any part of, Greg Berlanti will actually beat Berman. His total is already at 525, and with multiple shows going on at once and some already renewed, he will be the only person to beat Berman.