Okay, stick with me on this one as it sounds a bit odd but I think it must exist already.
Is there a Wiki/Forum/Site anywhere that collects descriptions of different game difficulties? For example, the difference between 'easy' and 'hard' on some games is related to the enemy AI, on others it can apply to how much ammo you find (think Resident Evil) or even the amount of enemies you encounter and their resilience.
I've recently felt that I really want to be put up against the toughest enemies a game can offer, just because anything less doesn't seem worth it (for the record, I NEVER play games on 'easy') however sometimes a 'hard' mode that applies to more than just AI can make a game less enjoyable. As a result, I usually go for 'normal' on everything and then step it up when I'm replaying. Other times, I go on recommendation from friends if they've played through it or with franchises I'm familiar with (Metal Gear etc.) I sort of know what to expect.
Is this something other people think about or is it just me? If I'm alone in this just tell me and I'll get on with my life.