So far, I think the show's most consistently entertaining writer is Harry Julian Fink. The writer whose name gives me lowest expectations based on what I've seen is Jay Simms.
"He IS Redstone."
Roddenberry and Fink with Wincelberg coming in a distant third, I think. It would be Bruce What's-his-name, the MASH writer except that he didn't write more than one or two episodes. I really liked
The Debutant.Larry Geldorf? I can't remember his name, anyway, whichever (later) MASH writer wrote that and it was good.
"The Debutante" was written by a woman, Gwen Bagni I think, who ended up developing Honey West.
Some of Roddenberry's episodes are fantastic, but I think he might have written more than one of those "Paladin, teach me to be a woman" episodes, which I generally dislike so far. I think that's a situation Captain Kirk sometimes found himself in.
Are you sure you're talking about a M*A*S*H writer and not Bruce Geller, creator of Mission: Impossible?
I've seen two episodes that Albert Aley was a writer on that ended with a bad guy getting blown up. I found that very exciting for some reason.
"He IS Redstone."
If Wincelberg is a distant third, where would you rank co-creator/producer Sam Rolfe?
Let's take a vote: Who wants to stay and die?
Wincelberg definitely!