Dear Aleksandar,
Did you study the interpretations problem carefully or do you just report vague rumors about it ? As I wrote in my report, it appears to me that the de-Broglie-Bohm interpretation is a purely materialistic interpretation, only supported by materialists, and motivated as a desperate attempt to save materialism in the face of its implausibility shown by quantum mechanics. I do not see there any trace of a fundamental realm of consciousness, and even if Bohm himself seemed to mention such an idea, the logical connection between the idea of consciousness and the effective content of his interpretation is actually non-existent as far as I could see (his hidden variables may be called an "implicate order" but this does not mean any form of consciousness).
The Many-worlds interpretation does not recognize consciousness as fundamental either ; it only develops a relativity of viewpoints, in a development that claims to be equally applicable to any sophisticated physical system (with memory) in guise of observer. Or did you see anyone presenting it otherwise ? I admit that Mikhail Borisovich Menskij has a view combining the many-worlds with a fundamental role of consciousness, however I do not consider his view very philosophically coherent and I don't think many other scientists are ever likely to follow it.
I know that the "collapse due to Quantum Gravity" came famous as proposed by Penrose but I do not see it very clear either, since as far as I know it remains quite vague without any precise conception of this quantum gravity. If the collapse comes from quantum gravity then it has concretely nothing to do with consciousness, and while I did not look at his ideas in details, I would be surprised if he could effectively justify the claim of a connection between quantum gravity and consciousness. Could he ? Already as I mentioned there, even the magnitudes of quantities do not seem to fit (perceptions by consciousness involve too light physical processes for quantum gravity to be involved).
On the other hand, I think my specific presentation of the mind makes collapse interpretation makes things much more coherent, in themselves and with the proper meaning of the idea of consciousness as fundamental. So I look forward for your more detailed review of this issue.