1- The origin of the universe: Theism explains the origin of the universe as God + God's deliberate will + God's personal nature, while Naturalism explains it with more parsimonious hypotheses (such as quantum field theory + cosmic inflation theory).
2- The existence of the universe: In Theism, orthodox philosophical and theological schools argue that God did not necessarily create the universe; therefore, according to both Theism and Naturalism, this universe could have existed or could not have existed. There is no dominant hypothesis here.
3- Fine-tuning: According to Theism, God does not need to create fine-tuning; fine-tuning could have existed or could not have existed. However, Naturalism strongly suggests fine-tuning because complex biological structures require complex physicochemical structures. [In naturalism, since the universe was not intended to create biological systems and most parts of the universe are lethal to life, we would expect biological systems to cluster in a small area and have a very complex basis.]
4- Consciousness and Qualia: While dualism is more advantageous in explaining subjective experience, Naturalism better explains the dependence of consciousness on the brain and split-brain experiments. There is no dominant hypothesis here.
5- Problems with the Holy Books: Theists must offer more arguments than Naturalism to explain the problems in the Holy Books [fictions that contradict science (e.g., the 6,000-year-old Earth), anachronistic fictions, fictional ancestors who gave their names (e.g., Israel/Jacob and his 12 sons), etiological fictions (e.g., Adam and Eve), slanderous myths (e.g., the story of Lot and his two daughters)...]. The naturalistic explanation (human influence) is far more parsimonious.
6- Fallacies in the Holy Books: When theists try to explain the fallacies in the Holy Books [the circularity fallacy, the ad hominem fallacy, the appeal to emotion (especially fear) fallacy...], the theistic hypothesis becomes less parsimonious.
7- Cultural syncretism: The theistic hypothesis becomes less parsimonious when theists try to explain why their sacred texts contain remnants of mythology [e.g., Ziusudra (Sumerian mythology) ---> Utnapishtim/Atrahasis (Babylonian mythology) ---> Noah (Old and New Testaments, Quran)].
8- Inconsistent revelations and religious diversity: Religious exclusionists, lacking an objective interreligious epistemology for comparing religions, present ad hoc arguments to explain only their own religion's truth. Religious pluralists must offer numerous arguments to explain why contradictory religions are on the same path of truth and why the test is not meaningless [if all religions were true, the test would lose its meaning]. However, since it is based on naturalism, anthropology, and comparative religious history, it explains how and why mythologies and religions arose in a more parsimonious way, in my opinion.
9- Moral evils, natural evils (evolutionary, animal, innate evils), distribution of pain and pleasure: While theism constructs theodicies (e.g., theodicy of soul development) and defenses (e.g., the defense of free will + interdimensional corruption) to explain moral evils, it cannot explain why natural evils and the distribution of pain and pleasure are random. Theists use a different argument (skeptical theism) for natural evils. However, the theodicies and defenses used by Theists also have problems (for example, the multiverse theodicy undermines the fine-tuning argument, the soul development theodicy cannot explain extreme suffering, the free will + interdimensional corruption defense is not valid in heaven. Furthermore, interdimensional corruption is not logically necessary, and the existence of moral evils is not logically necessary for the existence of a test. Similarly, the skeptical theism defense used for natural evils draws an epistemological arbitrary boundary and can epistemically harm other arguments. Naturalism, on the other hand, explains these three different phenomena with only one hypothesis: the "indifference hypothesis." The naturalistic hypothesis is both stronger in terms of explanatory power and more parsimonious.
10- The origin of religion: Theists argue that God facilitated the evolution of the human brain and naturally gave rise to religion. Naturalists, however, argue that the human brain's search for an agent for events in the environment (HADD - Hyperactive Agent Detection Device). The device evolved and the emergence of religion involves various contributing factors (the desire for justice in a chaotic universe, the desire for immortality, the need to fill epistemic gaps regarding the universe [humans did not evolve to be comfortable with uncertainty], functioning as proto-laws for early states, bringing together people who do not know each other, restraining immoral individuals, preventing the rebellion of oppressed classes...). Here, too, the naturalistic hypothesis is both stronger in terms of explanatory power and more parsimonious.
11- Is religion a choice or an orientation? (The problem of doxastic voluntarism and the problem of geographical/cultural buffers): Since belief is an orientation, not a choice, this directly supports Naturalism. The theistic hypothesis becomes less parsimonious when theists try to explain how people surrounded by cultural buffers [e.g., people in India] can make an objective choice of religion.
12- Miracles: The theistic hypothesis becomes less parsimonious when theists try to explain why we should epistemologically attribute trust in miracles [The epistemological reliability of miracles decreases due to the continuity of the laws of nature].
13- The history of the Universe and Earth (Hitchens' argument): According to naturalism, it takes a very long time for complex beings like humans to form. But God does not need such a long time. This gives naturalism an advantage.
14- Cosmological and biological disteleology: Naturalism explains cosmological and biological flaws (the universe being hostile to life but friendly to black holes and stars, blind spots in the eye, useless organs like the appendix and wisdom teeth, genetic diseases...) more powerfully and parsimoniously than theism.
15- The origin of morality: Evolutionary ethics and utilitarianism explain flawed practical morality and normative morality more parsimoniously than God.
16- The future of the universe: According to theism, apocalypse is inevitable, meaning that God is assumed to intervene in the universe at least once. Today, mainstream cosmological models say that the universe will expand indefinitely. The naturalistic hypothesis is more parsimonious.
17- Free will: For the test to be valid, there must be the luxury of being able to do otherwise (libertarian free will). But if your actions have a cause or not (if they are random), you do not have the luxury of being able to do otherwise. Compatibility is more compatible with Naturalism.
The biggest mistake theists make is acting as if the problem is completely solved when they explain a phenomenon. This is called "Ignoring Cumulative Probability" in epistemology. However, when they put forward more additional arguments than Naturalism to explain most points, the probability of Theism being true decreases cumulatively according to the principle of parsimony.