Weebee doll. Not only is the doll pattern free, but Laura has several clothing patterns for free as well, in addition to some paid patterns.
My dolls were made with Knit Picks Brava Sport and a size C (2.5mm) crochet hook. They are about 7.5 inches tall, with adorably large heads.
I like to make my dolls with move-able heads, so below you will find a picture tutorial for how to do this.