Which Species Has More Potential to be Interesting in terms of Story and Lore?

They all have good potential, indeed. With the Humans, the sought out story is what happened during the Golden Age, and the Collapse. What started it all? And what did the Humans have to endure, who did they have to fight, and what exactly the timeline is for all this. The Exos would also be very interesting, seeing as how supposedly the Humans made them to fight a war that they struggled with. My question for them is how were they forged? Why do they experience emotions, and everything else a Human does (Pain? Maybe..). Is it a possibility that they were once human? We may never know. But the Awoken are the most curious of all the Darkness' enemies. It is said that they survived the Darkness. How? And is that why they look as they do? Pale with shining eyes? They were once human, but does that connect to the reason they like to keep to themselves in the Reef? The reef, where it is said that the Mass Exodus of humans escaping the darkness were stopped (By what...?). Nothing but debris of thousands upon thousands of human ships remain (Among destroyed fallen and awoken craft as well, maybe even cabal and hive). That, and the prison of elders. Which is also something I hope is expanded upon. Is it under the security of the Awoken? This goes back to how the war with the Fallen/Hive/Cabal went. Also, exactly how does the queen have Fallen guards? Who may I point out, killed the House of Wolves' kell, merging the house into her society.

I think they all have good potential, it really just depends how you use them. Humans make good main characters, since people can relate most readily to them. I think the Exo are really interesting, and I plan on putting an Exo character in my story. I'm going to shy away from the Awoken simply because I feel like Bungie will soon release more details about them, which might contradict things I'd create. I personally love the Awoken though, in fact, my main is an Awoken Warlock.

I think it is the awoken. Simply because you have to meet the queen and her brother in the campaign. The humans are probably in the city under the traveler. And the exo are kool yes, but they Dont have much of a story. All 3 of my characters are exo, but I like the awoken