If you are new to quail I would seriously recommend not starting with bobwhites. They are wilder, more aggressive and require different care than coturnix or any other quail. Texas A&Ms are just jumbo white coturnix, they are the same as all japanese quail.
Bobwhites
-Must be kept in pairs during breeding season, but can be left in coveys the rest of the year
-Lay up to 100 eggs a year naturally beginning in may and ending in july/august. With artificial lighting this can be pushed to 200 but it requires a lot of work.
-Must be brooded under red light to avoid cannibalism
-require much more floor space as adult and more brooder space as chicks
Coturnix
-Can be raised in a covey with 1 male to 4-7 females
-Lay up to 280 eggs a year naturally can theoretically lay an egg every single day on artificial lighting.
-less aggressive in the brooder, cannibalism is almost non-existant
-Require 1/4th the amount of space to keep as bobs.
Bobs are a wilder bird with more of their natural instincts intact. Coturnix have been bred in captivity for over a 1000 years so they are much more like chickens in personality. Coturnix are almost foolproof to raise. If you're raising bobwhites the wrong way it'll be easy to tell, they'll be killing each other.