So... what things help you discern a belief system? The rituals? Prayers? Beliefs themselves?
what do you find most important that you seek in a religion or spiritual tradition?
As I examine different worldviews, philosophies, and belief systems from around the world, my primary focus is on the architecture of the whole metaphysical/philosophical framework, and then I work down from there.
In other words, I first examine the main questions and answers of the framework:
-What is the overall structure of existence, how did it come about, where is it going, and why is it like this?
-What is the ultimate aim of a person? What is the primary thing to realize, or the primary experience to achieve?
-What is the belief system's view of the Problem of Evil, or more generally, why do there exist undesirable subjective experiences and how are people expected to respond to them?
So it's a focus on the core structure (god or no god, oneness or separateness, linear or cyclical, etc), the primary aim (heavens, Nirvana, oneness, Moksha, etc), and the "why"? I'm essentially a systems engineer by profession so the overall architecture of a framework tends to interest me the most- is it elegant or clunky, flexible or absolute, etc).
From there, everything else seems to follow. Ethics are important but they're secondary to understanding the framework as a whole (as seemingly unethical things can be ethical with more information, and the other way around). Cultural practices, rituals, evidences, are all viewed as the framework itself trickles down into its practical aspects.