The La Fleche breed is a dual purpose bird with its meat production quality being the main reason for breeding them. They are consiered a very wild breed and like to have space to roam and forage on their own.
Lakenvelders are best when they're laying eggs, though they do have delicious white meat, albeit not very much of it. They can easily survive in both hot and cold climates and are considered very intelligent.
Langshans do great as egg layers and make great food birds as well. First time owners are often surrpised with how friendly they are dispute their large size. That can withstand any weather climate.
The Leghorn is a master of egg laying, producing upwards of 280 eggs a year. Their ability to be a good meat procution chicken has been overlooked as a result of this.