I've got a few questions in mind that are less "What is the best option?" and more "What options are there?" An example would be "How can you scale the difficulty of your game?", where there aren't really any perfect, best or wrong answers. However, I think this question might be too broad, and I already considered the alternative "How can you scale the difficulty of your action game without resorting to massive HP pools?", which is only slightly less broad.
The main problem I think these questions have is that they're not really a good fit for the stack exchange type of conversation, but I still think that a question like this would be a valuable resource for developers looking for this information.