well depends what code of Rugby you looking at? league, union and sevens?
every country will argue with their best players. so its a very vague question.
Because the game in both codes has some many individual specialists it is difficult to name just one for the cod ethey play for. However, there are sites that have started to nminate and vote best player in their position. In a recent pole. Gareth Edwards Cardiff,Wales and British Lions was voted the greatest Scrum hallf of all time.
Rugby Players
15 players in a rugby team
Rugby Players' Association was created in 1998.
for rugby league it is 13 players and for rugby union it is 15 players
There are 122,598 registered rugby union players in japan.
Rugby League has 13 players on each team. Rugby Union has 15 players on each team. There is a recognised game of seven-a-side in Rugby Union.
Rugby Union 15 players, (8 forwards and 7 backs) (Rugby League 13 players)
Rugby Union Players Association was created in 1995.
Welsh Rugby Players Association was created in 2003.
Rugby players
The Rugby world Cup
The Rugby World Cup