I feel like there needs to be a new system for gauging pepper strengths.... there is more to a chili than just heat... which is why I've not grown out any of these 'naga', 'jolikia' or 'ghost' chilis..... I jumped on years ago when the habanero's became popular as the "hottest pepper in the world", and found that the little bit of flavor you can pull out of them is akin to that of a burnt chuck of wood, and that they are too damn hot to use for most applications for most people..... so I've never tried any of the newer "hottest" peppers....
My grandfather introduced me to peppers, and gardening in general, and up until about 4yrs ago, he was keeping some unknown varieties of 'bird peppers' that he had been keeping going/crossbreeding with some "cockspurs" ('tabascos', before mchilinhey came around and TM them)..... and I will swear up and down that these peppers were much worse than a habanero when eaten raw, but were MUCH tastier when cooked into food, without making the food too hot to feed to the dogs....
I'm trying this year to go on a seed hunt for some of the less known hot peppers, and alot of the mild-medium heat peppers to balance everything out.