You're talking about weapons some people may not have heard of - in other words, spoilers, and you put their names in the title, no less.
Also you're asking for suggestions - in other words, hints

And yes, there
are hints and spoliers sections, as per Se?or Cinco's post.
Yeah, I get it. I don't think this thread fits in any of those sections, as it references multiple DLC and, thus, I chose to place it in the general Skyrim forum. Furthermore I don't think your or Senior Cinco's posts fit in this thread when their only purpose is to derail it and impede it's goal of establishing a preference and rational for one of the bows in question. Also, saying that the names of weapons are spoilers is like saying that learning Skyrim featured dragons before playing it was a spoiler. I would understand if I was discussing something like
or the NYI "Falmer Bow of Dwemer Reviving and Thalmor Banishing", but I'm not, I'm discussing original, non lore-oriented weapons for the purpose of learning about their parameters in relation to one another. Therefore I would like to cordially ask you and Senior to kindly stop posting in this thread, thank you.
Back to the topic, I'm curious, in all of your experiences does the Dwarven Black Bow's enchantment allow it to pull ahead of Zephyr's higher and faster physical damage?