I have done a lot of research on this topic. On the same engine, charge quality is the only thing that really matters, no matter how you get there.
Fuel particle size of about 3 microns seems to be the ultimate for power production, properly mixed with the charge air. Getting this size is more...
I deal with performance street cars in North Carolina, USA. The E10 is a problem to any hoses, diaphrams, etc. We constantly have to replace hoses, fuel pumps, carburetor accelerator pumps, and fuel inlet control valves. Water and corrosion is a small problem, more so in the fuel tank of cars...