Fine-tuning argument: MultiUniverses vs God
Some theists, and even religious scientists state that the MultiUniverse theory (where there are "infinite" number of Universes, each of them are has its own tuning of cosmological constant, so one would be likely to find among these, at least, one life-frendly Universe)
explain the amazing and a priori improbable fine-tunning of our Universe by invoquing a lot of entities (ie, Universes), whereas theistic hypothesis starts from the Universe we observe and doesn't need to suppose an infinity of Universes.
Thus, Multiuniverse hypothesis is, compared to the theistic one, less parcimonious. So, the theistic hypothesis is the best explanation for fine-tuning.
What's your opinion?