Wiki info follows:
Valentino Rossi is one of the most successful motorcycle racers of all time, with 8 Grand Prix World Championships to his name.
Mick Doohan is a former
Grand Prix motorcycle road racing World Champion, who won five consecutive
500 cc World Championships, second only to
Giacomo Agostini. Doohan's feat has since been equalled by
Valentino Rossi, who won 5 consecutive 500cc/MotoGP world championships from 2001-2005. He is considered to be one of the best motorcycle racers in the history of the sport.
Eddie Lawson is a former four-time
Grand Prix motorcycle racing World Champion. His penchant for consistently finishing in the points earned him the nickname "Steady Eddie".
Lawson has 31 wins and 4 championships
Doohan has 54 wins and 5 championships
Rossi has 96 wins and 8 championships
Agostini (aka Ago) has 122 wins and 15 championships (7 in the 350cc class and 8 championships in 500cc class with concurrent championships in both classes in 1968, 1969, 1970, 1971 and 1972.)
Looks like Rossi has a ways to go to catch up with Ago.