It’s always an interesting conundrum when editing. Some images are a very obviously one or the other. If there is vibrant colour that makes the image then I’ll leave it that way. If the image is all about composition and form, and has good contrast, I’ll often turn it black&white. I think the following shot looks good in both.
In the colour version it is the vibrancy of the green that grabs your attention, draws you to the subject, and then you notice the purple buds on the stem of the flower. In the b&w the form of the flower, and the contrast of the subject against the soft background gives a very different atmosphere to the same photograph. Which do you prefer?