Personally, I recommend chickens. They are easier to prep, and they are not as big of a nuisance to neighbors. (Plus, you can soften the neighbors with fresh eggs
) Turkeys are huge, making it hard to carry them. Plus, the toms (the males, also the prettier ones) can be loud. Chickens lay more eggs anyways. When you have the hang of the show, talk to a turkey breeder and see what they think. (I am not an expert on turkeys)
Chickens:
Pros:
Come in many, many many, different shapes and sizes
Are more portable
Lay more eggs
(can be) quieter
Cons:
Hard to get them just perfect for show
Prone to disease (depends on bird)
Can be mean
Hard to choose what you want
Turkeys:
Pros:
Pretty
Will impress some of your friends
Comes in less varieties (only one breed)
Cons:
Not as portable
Loud (toms)
Harder to prep for show (they're HUGE)