The best chicken for egg production is a hybrid that goes by several different names, but is essentially the same thing - ISA brown, Warren, Red Star, Production Red etc. There are also darker coloured chickens, also hybrids, that go by the names of Bovans Nera, Black Star or Production Black. All lay brown eggs.
If you want pure breeds, then your best bet is to go for either a Leghorn (lots of white eggs, but really flighty) or a Rhode Island Red (lots of brown eggs, a bit calmer).