As it's been queried how many physicists, mathematicians, etc. currently believe what about QM, I thought this paper (no paywall, Yay!) might interest a few of you: A Snapshot of Foundational Attitudes Toward Quantum Mechanics

For example, question 12: Copenhagen 42% Information 24% Everett 18%

Here, we present the results of a poll carried out among 33 participants of a conference on the foundations of quantum mechanics. The participants completed a questionnaire containing 16 multiple-choice questions probing opinions on quantum-foundational issues. Participants included physicists, philosophers, and mathematicians. We describe our findings, identify commonly held views, and determine strong, medium, and weak correlations between the answers. Our study provides a unique snapshot of current views in the field of quantum foundations, as well as an analysis of the relationships between these views.