I go through this a lot myself. For me it makes it hard once you have seen the color version. There's definitely an impact with B&W that you can't achieve with color. But I believe that our minds crave color, and so once we see it in color, it makes it harder to appreciate the impact of B&W.
Anyway, with this picture I prefer the B&W. With the majority of the picture out of focus, the B&W takes advantage of that and brings attention to the in focus drops, while color seems to be distracting. Just my two (actually 0.2 with my voting power) cents worth.