Here's a weird but true fact:
Doms smell better than other chickens. They have a clean, after-the-rain scent. My other chickens have an earthy smell. I noticed this one day during cuddle time. Of course after noticing, I began sniffing chickens and asking others to do the same. Go ahead and try. They do have a more pleasant smell.
TeeHee - so true about Dom feathers!
One other breed we notice have a pleasant sniff test to their plumage -- our Bearded Silkies have a clean smell to their feathers too.