1) Can you add some low level cranks, like FSA Gossamer etc
2) Can you add MSRP or some other cost factor as it would be nice to see S/W per dollar or something along those lines. Many of these cranks are not that much stiffer (albeit perceived) but may be lighter and cost much more. It would help to see what exactly you are getting for the additional cost.
Cranks seem to be the mattresses of the bike industry. The different companies but different labels on them but they are the same thing underneath.