You haven't put your location in your profile, so we are left guessing which answers might be most useful to you.
If you live in USDA zone 5 or colder, then Buckeyes might be your best choice of breeds.
For quantity of eggs, you can't beat a White Leghorn...there is a reason almost every egg farm uses that breed. They will produce the most eggs per pound of feed. They aren't always the best foragers, but if you start them as chicks, you can train them by putting (bug laden) clumps of sod into their pen. They produce a white egg. It seems that most permies & backyard raisers want brown eggs, but nutritionally & flavor wise, there is
no difference between brown and white shells. The difference comes with their diet.
If you want to compare breeds, check out this chart (use the "+" button to enlarge the PDF):
Henderson's Chicken Breed Chart