The Bane should be used when part of your board has been cleared by say a Jitte and you only have like 2 elves and 2 lands in play and you barely manage to get to that 4 mana. In those cases, the Bane (depending on the board state) might manage to turn the game around completely - ridding you of said nasty artifact(s) whilst leaving you with a nice clock on your opponent in the progress.
In this scenario, GSZing for a Viridian Shaman has the same effect and doesn't burn a NO+elf. And that Bane would be a 3/3. Not the greatest clock.
The Hoof is mostly viable when having a rather safe board position or when it lets you steal a game from your opponent. Doing so requires you to have 4 creatures or so on the battlefield and able to attack though. The Bane is there to let you break out of a bad board position, allowing you to improve upon it, whilst the Hoof is there to exploit any halfway decent board position.
We are saying similar things here. But I don't think killing a single equipment is so dreadfully important that we need to burn precious resources on a Bane. Our definition of "bad board position" differs here. Staring down 3+ enchantments or a field full of artifacts is a bad board position. Staring at a single Jitte is not (usually).
I might be biased though, I run a Viridian Shaman in the mainboard so am used to having acces to that any time anyway, making the Bane the icing on my cake. And I just like saying "The Bane".
I also run a Shaman main. I think you are suffering from the The Danger of Cool Things IRT Bane.
That being said, the 3 Peedles are probably the most highly valued cards in my sideboard. The Bane should not ever be used to try and replace a Peedle with, but should be used in conjunction with it.
Word.