Your poll will be incorrect depending on who is voting; this is due to the octane rating difference between the US and other country's. The US is lower in the octane # then others. I believe it’s due to the US using MINIMUM ratings instead of actual, same fuel just different numbering system.
I use 90-92 NON-ETH fuels, I feel the motor would probably run just as well on 87 but prefer to use a NON-ETH fuel due to water separation.