This ones not too bad-you can check out the references or whatever of the stuff they list if you want to.
http://en.wikipedia.org/wiki/Scoville_scale
They have to be accurate-it's on the internet...
They group too many peppers under the same thing.
Bhut jolokia's aren't all the same,Bih Jolokia,Naga Jolokia etc. are different from where they originate from,growing conditions etc.
Different strains can never be classified , in general,as the different varieties adapted to specific enviornments and possibly crossed with different other varietis of locally grown peppers.
No matter what list you find,it'll never be as accurate as some people might like.
Habs grown in BF Egypt might be hotter than they tested the Bhuts grown there or whatever.
Then you have to deal with who grew what where and from what seed stock.
New pepper crosses and varieties are bred or found so often these days even the most accurate list today will be no good next week/month...
You might find an accurate or semi accurate list of stablised pepper strains but super hots,especially , are a crap shoot these days with everyone trying to get on the $1.00 + a seed gravey train and staying there,hoping their newly crossed hybrid either is stable or they find one to beat it before people stop buying it.