Me and a friend of mine (who also want to get chickens some day) sometimes engage in a little thought experiment: If one were to buy a flock of chickens with the weirdest-looking and most diverse breeds, which breeds would one pick?
That is, don't just pick one breed that looks the weirdest, but pick weird-looking breeds that look totally different from one another.
Another "rule" of this thought experiment is that the flock has to "work". It has to be a healthy flock. So, one rooster per 5-15 hens, preferably no mixing of huge and tiny breeds, etc. Also, you have to be able to obtain the birds reasonably easy where you live. So possibly no breed that only exists in a tiny part of Asia.