I noticed that every variety you cited is a Capsicum chinense. My own personal taste experiences are minimal, but i gather that other species have many more nuances of flavor -- most notably C. baccatum and C. pubescens... and wild species (admittedly, you may have to grow some of these yourself, but some ought to be available from growers).
Within the C. chinense species, there are 'wild' chinenses, such as CAP 691, Cumari do Para, etc. There are also distinctive types such as Aribibi Gusano (Bolivia) and Caribean peppers (ie.: Trinidad Small Hot Cherry, MoA Scotch Bonnet, Bahamian Goat).
All the examples given are types that i watched Nigel review... as i said, i haven't tried them (yet). None of them are superhots, but they are distinctive... and they all have respectable levels of heat, apparently.
If you want superhot levels of heat, Georgej reviewed the White 7-Pot recently, and reported a very fruit/citrus-type flavor to the pod. His facial complection was distinctly redder after ingestion, so i think they are quite hot.
All of these are suggestions from a guy who's never tried any of these...
muskymojo said:
I would buy a mixed box of pods with a good variety and go from there.
Probably the best suggestion here. Communicate your needs to the vendor before ordering, if possible.