I use both. I put shavings down on the floor of the coop and hay on top. Then I put some shavings in the bottom of the nest boxes and a little grass hay on top. The hens arrange the hay into a nice bowl shaped nest.
I find cleaning the floor of the coop is easy with both. I use a hay fork to pick up the hay as it gets messed upon - every couple or so weeks. The shavings last a long time underneath. Eventually I strip the whole thing out and start over - maybe only twice a year.
We have never had mites, but I have been warned that hay/straw will harbor mites. I have read here that some people put food grade diatomatious earth (sp?) on the bedding to prevent mite infestations.
I find cleaning the floor of the coop is easy with both. I use a hay fork to pick up the hay as it gets messed upon - every couple or so weeks. The shavings last a long time underneath. Eventually I strip the whole thing out and start over - maybe only twice a year.
We have never had mites, but I have been warned that hay/straw will harbor mites. I have read here that some people put food grade diatomatious earth (sp?) on the bedding to prevent mite infestations.