I am knitting a cardigan for my grandson. I picked Berroco Vintage DK for the yarn. It is a blend of Acrylic, Wool, and Nylon. It is machine washable and very soft, so it seems a good choice for his cardigan. I am using a #4 needle for the ribbing, and a #6 for the sweater body.
The pattern is from a Debbie Bliss book, "Design it, Knit it babies." The color choices are very close, because my daughter likes them. The yarn is a joy to knit with.