IOTA is heading to find strong partnerships in industries and they have already settled up some. This is definetely one of the factors why it is currently more valued than Byteball in my view. Nevertheless, Byteball has a different use case and you can not compare both projects just because they base on a DAG. The projects are pretty different in their nature. I think both projects will gain more value in future because the tech of both is strong.
So right now Byteball is valued at only 1/6th of IOTA. Obviously there are some differences in both projects. Most well known is the fact that IOTA has actually no tx fees.
I wonder however how sustainable a network without any fees for transactions can be (seems like a great spam-attack vector)?
Do you guys think IOTA is overvalued or Byteball undervalued? Or both?