If you are interested in bantam breeds and it is important to you that they be calm and make good pets, I would not go with East Indies. In my experience, Mini Appleyards and Australian Spotteds are *far* more friendly. If you want something strikingly beautiful, BEI are a good choice though. I guess it depends on which is more important.
Of course, I'm sure there are exceptions and all that. My first bantams though were an assortment from Holderread's several years ago and the BEI were the least friendly of the group. The Mini Appleyards were so friendly they would crawl all over you getting into your lap for attention. They have always been my favorites ever since (I love the Aussies too). I have never had BEI since that first group, so I am not sure if they typically are as nervous as mine were.
I have also heard that Calls make great pets, but I don't keep those so I can't speak from personal experience.