I like O'Donnell fuel. I have tried O'Donnell, Sidewinder, Blue Thunder, and Byron's 2nd Gen and my favorites without a doubt where O'Donnell and Byron's. In my area I don't know anyone that carries Byron's anymore. So I am stuck with O'Donnell but it's still my one of my favorite fuels. Performance wise O'Donnell and Byron's are tied, but I do like that Byron's has some color so it's a bit easier to see fuel level.

Sidewinder was not a bad fuel at all either. Blue Thunder I didn't like at all, I had way better performance with the other three I have tired.