catver.ini or genre.ini are the ones that most people use. The front end will use these to figure out the rom and then usually display the name of the game based on that. If you want to have a text list of games based on either of those files, RomLister is probably your best bet. I don't know if it will generate a full list like you are asking for, but it will get you a list of games in each category/genre anyway.