I'm still just a kid at heart, so I enjoy having a variety. Each kind of chicken has it's own personality and quirks, and if you were to get one each of three different kinds ( I'd go for a barred rock, an easter egger and a red sex link from your list) the kids would be easily able to tell them apart and name them
As an added bonus, each would lay a different color (or different shade of brown in the case of the barred rock/red sex link) and you would know who was laying and who was not. No matter what you choose, enjoy them!!!
