I SAY GO WITH CHICKENS!!!
If you do get chickens (which I hope you do), you need to understand that the first month is a bit of a challenge as a first-time chicken owner. You also need to remember that someone might have to take care of your peeps if you go on vacation, depending on how you run your coop. (My flock can go about two days without anyone taking care of them, if the situation came up.)
By some funny turn of events, we got a dozen two-day-old chicks with only a week's notice. We didn't know what sex or breed, we didn't have a coop built, or know anything about chickens.
I am thirteen years old. My parents both work, and take care of our other various pets, not to mention my two younger sisters.
We got our chicks in the summer, and after about a month of getting the hang of things, building the coop, and naming our peeps, we had established our flock.
Unfortunately, 7/12 were roosters that had to be butchered or re-homed. We lost one to prolapse, but we're getting more in the spring.
I think chickens are a wonderful investment. Though maybe they won't give you financial prosperity for a while, they give you many other things.
They have taught my sisters and me responsibility. As the primary caretaker for our flock, I check on them daily. (Now that we have a flock setup and plan for care, it only takes me 10 minutes each day.) We have learned to work together and take care of other creatures to give them the best life we can give.
Our peeps are fun and entertaining. We have Apple, Ginger Pye, Oddball, Friday, and Blackie the rooster. I cannot describe the hours of joy we have gotten from picking up and playing with our chickens, not to mention just watching them grow.
Good luck, and welcome to BYC!!!
Tell us what you decide!!! (Ideally, PM me.)
P.S. Storey's Guide to Raising Chickens (by Gail Damerow) was very useful.