Brolly box vs Softbox vs Octobox

I was just wondering what is the major differences between these three. It looks like the Brolly box produces similar results to a Softbox, but is much more portable and and is easy to store. And the Octobox produces a better catch light, but isn't much different in lighting the subject then a Softbox. Does anyone have any studio examples of any of them that they could share. Thanks.