What i found was a lot of people where using moves only supper effective against the guy in front, so i would rotate in anticipation, and in turn one shot their pokemon with a super effective move. It was as if no one was being smart about the rotations, and many of my opponents were as predictable as can be. It also seemed as if a lot of the all uber teams were not trained at all, and that lead to my Latias surviving a blizzard from a mewtwo, and killing it with a Draco meteor, and that in turn caused me to win.
85% of statistics are made up on the spot, don't bother putting this in your signature, because i made this statistic up too.