Yeah Robinsons real quick off the mark but I've caught him with players like Shane Williams, Habana and Paulse. Maybe the computer gives the ball carrier a slight disadvantage so whoevers chasing can catch them.
Someone I noticed who's faster on the console version than he is on the pc version is Joe Rokocoko. For some reason on pc he has good speed but on Ps2 version he has that extra pace and is a Winger version of O'Driscoll and can't hardly be tackled from behind. Ea might have incoded the games different on each format to give certain players advantages on Ps2 version, than not as good on pc version.