I use Meyer and MMM almost exclusively. I've actually found Meyer to win the customer service battle in the past--they've been amazingly nice.
I do think MMM has better birds. I wasn't at all happy with how my sex-links from Meyer laid this past year, and I know for sure that MMM Easter Eggers lay better. Also, Meyer's Barred Rocks have clearly been crossed with something to increase egg production, as I've never seen such light-bodied Rocks before. They were practically sex-links, they were so slight. Not so good for girls that I bought to breed some table birds.
All said and done, I liked the people at Meyer a lot, but won't order birds from them again.
I do think MMM has better birds. I wasn't at all happy with how my sex-links from Meyer laid this past year, and I know for sure that MMM Easter Eggers lay better. Also, Meyer's Barred Rocks have clearly been crossed with something to increase egg production, as I've never seen such light-bodied Rocks before. They were practically sex-links, they were so slight. Not so good for girls that I bought to breed some table birds.
All said and done, I liked the people at Meyer a lot, but won't order birds from them again.