I can't speak to other lines but my Delawares are really good layers but my older girls (around 2-3years) are not good winter layers. I have some pullets that come into production a month or so ago and they are doing well and even more are starting to lay but my older hens haven't laid an egg in a couple monthsI'm interested in the Dels because laying well in winter is an advertised characteristic of the breed. That, the size, and the "early maturing."