Anyone else want to chime in on why you got your birds and why you chose the breeds you got? I'll try to work on it tomorrow to get some of these answers consolidated and see if I can come up with some advice on what breeds I think will be suitable...though there are many, many suitable breeds for any given purpose but I can give you some info about the breeds I have had and why.
We initially became interested in having 'Backyard Chickens,' because we have a lovely garden, including many herbs, and many snails and slugs. We have used food grade pellets/liquids that are safe for our small children and dog, but they are costly, and must be reapplied after watering/rain. I read that chickens are wonderful at eating these pests, and knew that chicken fertilizer is excellent for the garden. My husband worked for many years in our local strawberry farms, and they used chicken fertilizer. I suggested to my DH that we try it, and he thought it would be a great idea. When my children overheard the discussion, they couldn't wait to get the chicks. Our local feed store had only two breeds of chicks, RIR hens, and something else that was straight run. Our city allows only hens, so RIR's it was. Another example of God's provision, now that I know a little more about hens, I am pleased to have our RIR's!
Now that we have the hens, we are eagerly awaiting eggs, and have read about the nutritive value/taste of these free ranged eggs v commercial eggs. Being such absolute and complete newbies, we are still learning about what works best with our chickies, and what doesn't work so well. They love the FF, and ACV in the water; we love the DL. We realized that our coop needed a roof (other than the chicken wire) when we had our rare week of So. Cal. rain. Thankfully, my loving husband enjoys wood working, and having a project during this past summer and now, during the holiday time, is a huge blessing (oh dear, here comes the misty moment). My beloved FIL passed away this past August. He had a long, 5 year battle with cancer, and the last month was....horrible, as a last month of cancer can be. His passing was difficult, and we, and my MIL continue to mourn his loss. Having the new project, researching, working, and new chores for the kids, have been a great distraction to us all. There you go, why we got our birds, and why we chose the breed we have!