One of Ravelry's most popular patterns for socks is the Hermione's Everyday Sock pattern by Erica Lueder. You can also find it in Erica's Dreams in Fiber blog. This free pattern has been published in 6 languages and is listed in over 24,000 projects.
Erica has written the pattern for top-down sock knitting, but I'm a complete convert to toe-up. So I use her stitch pattern in my 64 stitch personal sock pattern, and it works beautifully. The stitch design breaks up stripey yarns and softens the variegation.
The yarn for the main body of the sock is Hedgehog Fibres Sock, in the Kimono colourway. I love this yarn's variegation - no pooling of colours!
I used up bits of this and that sock yarn to knit the toe, heel and ribbing. The heel is done in the Eye of Partridge slip stitch pattern, which I think is prettier than the traditional slip stitch heel.
And finally, I use Jeny's Surprisingly Stretchy Bind Off (often known as the JSSBO) for my sock ribbing. I bind off in pattern, and it makes a fantastic stretchy cuff that doesn't slide down the leg.
I can't wait until the weather cools down a bit to wear these!