Based on the wonderful feedback from everyone yesterday, I have decided upon the Brick Merino by Fleece Artist for my sock pal's finished pair. Now all that stands in the way of me ordering said yarn is determining a pattern. I have to have enough yarn, after all.
Here are the options:
Option 1: Saucy Socks (PDF) by Cider Moon
Option 2: Travelers Stockings (this pair knit by Grumperina) by Nancy Bush (Knitting Vintage Socks)
Option 3: Thelonious by Cookie A
Option 4: Cable Net from Knitty
Option 5: Pomatomus from Knitty
So, please cast your vote and I'll order the yarn and cast on!