Black Australorps a good choice for production?

[rd200]

I am venturing into chickens! Just got my first 8 of them today. I have 5 Barred Rock Hybrids (were suppose to be purebred barred rocks but after hatching, the Rooster clearly was not a purebred) they look like Barred rocks though mostly. 1 easter egger, and 2 Cream Legbars. 1 is laying, the rest are about 3 months old.
Anyways, so I want to get around 12-14 chickens. So im trying to decide what breed to get next. we want them for laying. We eat TONS of eggs, so I really want something that is productive egg layers! I was thinking Black Australorps sound like a good choice. They lay well correct?? The one thing im concerned with is that they are BIG. The Barred rocks are pretty big too, but the cream legbars are not. Im just wondering if that is going to cause problems with such different size birds???
Its between the Black Australorps and the "browns" I kind of wanted something a little more unusual than just the "browns" but I also want a lot of eggs. So if the browns are going to lay that much better than I may just get some of them. Thoughts??

 

[Banana Hen]

Leghorns... They lay white eggs, and a LOT of them. But, they are crazy. Flighty, too. If you get super cold in the winter, don't get them. They are warm weather birds.

Catalanas. They lay a sort of pinkish egg, but they are rare. Very rare. I am not sure about their temperament, but they should not be kept in too cold weather, either.

Marans.. They lay brown eggs. DARK brown eggs. They are very friendly, and beautiful too. They are talkative, and appreciate attention.

Barnevelders.. Same as Marans, but their eggs aren't as dark.

Have fun choosing!

These birds aren't huge. If you raise little birds with big birds, they should be fine.