My best example for simplified lore would be TF2, while it does have a lore it never really seemed like it was too deep and really just meant to be funny, but still had great storytelling. Now an example of a complex lore would probably be more like the call of duty zombies franchise, while seemed simple at first it proceeded to expand on its lore. Making it confusing to the newer users but a good payoff for those who actually paid attention and enjoyed attention to detail. So in your guys opinion what do you think is better?