Can't do comparisons, but I can tell you about my red star. She lays a very nice sized (large) brown egg every day. She is also the source of most of the double yolk eggs I get (which we think are so cool). A very laid back, sweet natured, easy going little lady. I have a black sex link too, but she is just a week old.
Just wanted to add, for an absolute egg laying machine, the Leghorns are AWESOME!!! Not sure if they are something you aren't interested in?
I have to agree about the white eggs!!! LOL However, when mixed with my light brown, dark brown, and green, they look really pretty.
I know they aren't supposed to be really nice, but that just blows my mind! I have two. They are both sweethearts. One of them begs to be held and falls asleep with me carrying her around. I have no clue why mine are such sweeties but I guess I lucked out.
I have BSL's and GSL's from Ideal.They are really a RSL but Ideal has three different RSL crosses so they use Gold,Red, and Brown to identify.The GSL's that I have are RIR over RIW and they are as good a layer as my BSL's.You can't go wrong with any of the sex link crosses if you want lot's of big eggs.In fact many first generation crosses from other good egg laying breeds are excellent layers and often times better than the original.They just can't be sexed at birth by color.