Consistent Histories is the most logical. Here you have Many worlds.. and factorization defaults (collapse) to one world dictated by the consistent histories with temporal reversibility in the histories backtracking. Can't it also create all the constants of nature.. the consistent histories produce the right constants all the way to the big bang. This can solve the fine tuning, hierarchy problems, and others. What do you think is the problem with Consistent Histories, if there is any?