Black thread vs white thread

The idea for this post came from some beads that I've been working with the past couple of days. They're Chinese rondelles in a beautiful pale peach color that I got from Beadoholique, which is the local bead shop. The 6mm rondelles have a beautiful opal finish and the 3mm beads have an AB finish. I thought they'd make a pretty bracelet and earrings set. 

My main concern was that my black thread would show through the translucent beads too much. Well, it does show but I'm not sure if I mind it so much, at least compared to what happened when I made a sample of the bracelet pattern with Crystal FireLine last night. While the white thread allows the color of the rondelles to show up better, the thread shows horribly where the rondelles are connected to the seed beads. Of course it's a lot more obvious in these photos because they're so large and zoomed in. But, that also means that the shadows from the black thread really aren't quite as obvious in reality as in the photos (click the photo below to see it at full size).
 

One thing that I like about using black thread for most of my beadwork is that it gives the metallic seed beads an "antique" look because they have a dark outline around them. When I used white thread to make the earrings below, the seed beads look very pale and lack definition. Mind you, I think these earrings are incredibly pretty. You'd have to see them in real life to appreciate how tiny and delicate they are. I do like how the earrings look with white thread. White works in this case because the beads are very tiny (15/0 seed beads) and the stitching is very close together. So, there are no big gaps where the thread shows like there are in the bracelet.

The above photo is rather dark. There really isn't that much contrast between the beads. This photo is more how they really look:

Here is a comparison of an earring with white thread (on the left) next to one made with black thread (on the right):

The peach colored beads turned gray from the black thread going through them. They still look very pretty, just not the same. What I can't decide is if I prefer the delicate pale look of the white thread version or the more vintage look of the black thread version of the earrings.

How do you decide what color thread to use in your beading projects? Let me know what you think by posting a comment.

The bracelet pattern is my adaptation of Ellad2's "Lace Flowers Bracelet" pattern which you can buy HERE. I made the earrings from Nunzia's "Easy Earrings" YouTube tutorial which you can watch HERE. I made them with 15/0 seed beads and 3mm rondelles which is why they're so tiny. I also added an extra element at the top this time.