That's not scientific. That is an opinion. Scientific is when you have a controlled environment with controlled conditions - which, none of us are likely to have.
For example, I can give you the % of highway and city that I drive. But even on my morning commute, the air temperature may vary by 10 degrees, or more, over the course of a tank. Also the humidity varies a good bit, too.
This isn't going to settle anything.
Now, I have posted a while back the following:
http://www.fitfreak.net/forums/fit-t...tml#post149388 where you can go and see where I have recorded every time I have put gas in my Fit over the first 30,000 miles. This still isn't scientific, but it does show some trends.
Oh, and based on simple factors, a single tank isn't going to be accurate - the position of your car, the individual pump, the phase of the moon (well, that may be a bit of a stretch!) and other things can contribute to a single tank mpg reading.
If you're bored, check the link above, and study it for a while and let me know what thoughts you have about mpg trends.
YMMV (your mileage may vary!!!!!!)