From everything I've read here (and in my own experience), the best layers are brown egg layers.  So why is it that the cheap commercial eggs are white?  What kinds of birds are they using?
Lots of misleading an inaccurate info on this thread.
Commercial eggs are are white, because  most of US  consumer is used to  white eggs,  Part of NE  being the exemption,  in  New England  brown eggs are still preferred.
Color of egg shells  is tided to genetics  and breed not to what  the birds are fed.
Commercial  white egg layers are  selected Leghorn strains, not some  mysterious hybrids.
There is an "scientific" opinion that  taste and color of  the yolk  of egg has nothing to do with egg shell, but depends solely on the feed.
This is highly controversial, and I have evidence to the contrary.
Friend of mine  has  5 acres  of pasture, part of it is cypress wetland.   She's got   white  egg layers (california whites, Spitzhaubens)  and brown egg layers mostly Orps  and   cuckou Marans.
Marans and orps  yolks are more  orange  than  white  eggs,  all birds are fed same food and forage the   same pasture.
So genetics  do affect  yolk color  and perhaps the taste,   but taste can be subjective,  color difference  is  obvious.