It's tough to say because I don't really follow the other teams managers all that much.
Gibbons makes some bad moves but there is no way I'd take Ned Yost over him. Gibbons' lineups are probably about 80-90% of where they should be which probably isn't too bad meanwhile Yost will bat one of the worst hitters in baseball at leadoff because "we win when he hits leadoff." The players, outside of the spats he got in before, all seem to like him. We've got quite the collection of characters, that can't be the easiest bunch to manage. I like that he's willing to get tossed more than any other manager in the league. He doesn't do too much on the basepaths and it seems like we don't really bunt that much, unless it's just a god awful hitter at which point it's not that big of a deal imo. I also think that there have been a lot of times when we could have escalated our beefs with other teams and have chosen not too. Gibby should get some credit for managing all of those situations pretty well.
He's also done some dumb s*** that works out, even regarding his bullpen. He pretty much threw a struggling Jason Grilli in to the setup role and that worked out well. Looks like Benoit and the 7th inning might be working out similarly. It does seem like we often run in to "Player X is unavailable out of the pen tonight" because they have been used so many days in a row. But that's also kind of a product of having 3 or 4 guys you can actually count on on the rest being garbage.
I'd take him over Yost and I'd take him over Farrell. I'd also take him over Bannister. That guy is dumb as s***. I remember in the playoffs last year he went to Chi Chi Rodriguez in a very clutch spot who predictably was shelled. At the beginning of the year Gibby went with some of his garbage guys in key spots but not even he is dumb enough to do that in the playoffs. Though Gibby did burn David Price in a blowout game last year which was DUMB.
I watch a lot of Showalter and as much as I hate that ******* I can't really say Gibby is any better than him but he's also not really much worse. I'd probably give the edge to Showalter though they are both probably middle of the pack managers. I watch a lot of Walt Weiss. He doesn't really stand out one way or the other to me either.