I love kemps merino sock yarn. So far it is my fav.
Here's what Iam using.
http://www.divaknitting.com/store/in...f23ad8d3602b28
It's a liitle pricey but worth every penny.
If you are on a budget as Iam, I also love patons kroy in self striping and I use alot of bernats hot sox for kids socks.