Sunnyside Denatured Alcohol MSDS: % by wt
Ethyl Acetate 1
Ethyl Alcohol 85.7
Solvent Naptha 0.8
Methyl Isobutyl Keytone 1.9
Methyl Alcohol 3.6
This adds up to 93% so I assume the remaining % is water.

Kleeenstrip SLX Denatured Alcohol MSDS: % by wt
Ethyl Alcohol 45-50
Methanol 45-50
Methyl Isobutyl Keytone 1-4
Amount of water content is unknown and not able to compute from the above data.

Kleen-strip Green Denatured Alcohol % by wt
Ethanol 90-100
Methanol <10
Methyl Isobutyl Keytone <10
Ethyl Acetate <5

HEET is 99% Methanol with 1% proprietary additive.
Ethanol has approx 1/3 more energy as methanol by weight and 18% more energy by volume.

I've picked up a new brand of Ethanol called Bioflame at CanadianTire that has a really high ethanol content.
Bioflame Denatured Alcohol MSDS: % by wt
Ethanol 95
Propanol-2 5
Water content not stated.

Jim is so right -- if you need to count grams then ethanol is the winner but it is definitely more expensive. In my case Bioflame is a jaw-dropping 3x the cost of Methyl Hydrate (methanol 99.9%) and is NOT as readily available. See my other post in this forum for my own non-scientific testing.