I managed fuel distribution for a couple of different companies for the last 20 years and have had a lot of experience with Ethanol blended gasoline.......To keep it simple, Ethanol is made from grain......until they put the additives in for the car it is moonshine.
Methanol is made from wood by products and if you drink it your dead no matter what.
Ethanol is a good fuel system cleaner and injectors seem to do well when you run the normal 10% ethanol blended gas. Alcohol is hydrophylic (it soaks up water) but only to a certain point! Cars in the colder climates accumulate moisture in the fuel tanks and water is heavier than gas so the moisture is puddled in car fuel tanks but it is below the fuel out let. So, you don't know its there until you fuel up with an Ethanol blended fuel.
If there is enough water in the tank when you take on the Ethanol blend, the Ethanol is actually pulled out of the gas and you end up with a mixture of alcohol and water in the bottom of the tank with gas sitting on top.......engines don't run well and drivers get very unhappy and tow companies get very happy. Thats why when a new area is mandated to run Ethanol blended fuel there are a lot of initial problems......gotta get the condensation out of those tanks. Once the excessive moisture is gone every thing goes well....I run the stuff in my vehicles and have never had a problem. Also, Methanol is very corrosive and hard on carb guts. I don't know if Walbro has upgraded their components to hold up to Ethanol.....I know older carbs had a problem with it.........and boat motors have had a double whammy.......the older carbs couldn't do alcohol........and remember the water thing.......boat environments invite problems......In addition, alcohol volatilizes at a lower temp than gas so given the wrong engine temp environment vapor lock can be a factor....I have never had a problem but only have run it in my vehicles....not RC.....I'm still learning so would like to monitor this conversation.......Maybe Ethanol is OK ....but I would never use Methanol in anything other than maybe Gas De-Icer......Small amounts for you vehicle......not RC plane