Bits, Bytes & Beyond: Logo Design

Here you are viewing three conceptual designs for the title above. Along with the title, color choices were provided by the prospective contractor. With over 50 submissions my piece was not selected, but I was invited to participate in the second round.
Part of the logo criteria was to create something that would appeal to young children who are not quite tween but older than toddlers. I specifically prefer the 2 logos on the left, but feel that the one on the right is also eye catching and memorable as far as marketing purposes go.