Although I am almost 6 pages behind, Goten is quite wrong concerning laggers having an "advantage" over the other player.
As someone who has frequently been on both sides of this issue, since I used to have a WiFi with 100-300 ping (for the past year I now have 50-60), both players have just as hard of a time hitting each other. The only reason the person who lags usually wins is because they know how to predict where their opponent will be, while the non-lagger has no clue how to predict anything.
It's not an advantage, it's just better experience.