Learning to sew: Here are some thread choices. Whatcha think?

Well, dear readers, there's been a slight hitch in my sewing plans. My feet misjudged the steps, and I took a tumble. Ouch ouch ouch. Ouch! I tore  some ligaments, and I'll be staying off my left leg the next two weeks. (As much as possible, anyway.) Doctor's orders. And all that. 

I did pull some spools of thread today. Which one do you think looks best? Do tell.