Based on my very limited experience with a measly 4 breeds, I'd have to stick with my EE and sussex (speckled, but if we're only allowed two breeds why limit yourself to just one variety?). Granted, I've only had chickens since July and none of my girls are laying yet. But personality wise, my favorites are the EE and sussex. They're very curious, always coming to see what I'm doing or bringing them, and my one EE harasses my dog (poor boy, I'm not sure he knows what to make of it when she pecks him on his nose...especially while he's peeing!).
If EE weren't an option because they're technically not a breed, I'd have to choose Marans. I haven't tried them and I don't think anyone in my area has them, but they look like they'd make really nice dual purpose birds and the dark eggs would be neat and a nice contrast to the lighter brown sussex eggs. They're on my "short list" for when we win the lotto and buy our dream farm.
If EE weren't an option because they're technically not a breed, I'd have to choose Marans. I haven't tried them and I don't think anyone in my area has them, but they look like they'd make really nice dual purpose birds and the dark eggs would be neat and a nice contrast to the lighter brown sussex eggs. They're on my "short list" for when we win the lotto and buy our dream farm.