Yeah, the OD eggs are on the small side...I would say if you want decent sized bantam eggs my bantam Brahmas and my silkies both lay a pretty good-sized bantam egg!
Oh and I live in the very hot CA valley, they are quite heat tolerant and seem to fine with the cold we get here. The roosters have good sized combs, so they will struggle with frost bite if you live somewhere super cold in winters.
Well I can’t speak to OEGBs since I haven’t owned them— @ChicksnMore has both of these breeds and might be able to help with the primary differences in personality and such!
I do have ODs so I can share my experience with them. I have a rooster and two hens and I love them. The rooster is...