I have create all-time teams for both national teams, regional/specailised teams and club teams. The national teams are 23-member, the official number of players each team carried to the World Cup Finals. The club teams are 23-members, the official number of players each team registered for the Champions' League.
Germany, Italy, Holland, Portugal, Austria
Switzerland, Belgium, France, Spain.
England, Scotland, Wales,
Ireland/Northern Ireland combined team,
Ireland, Northern Ireland,
The Balkans(Southeast Europe)
Bulgaria, Romania, Turkey,
Former Yugoslavia, Former Yugoslavia without Croatia and Serbia,
Serbia , Croatia,
The rest of Southeast Euorpe(Greece, Turkey and Albania).
The Former Soviet Union
The former Soviet Union without players from Ukraine and Russia.
Poland, Czechoslovakia, Hungary.
Scandinavia excluding Sweden and Denmark.
South America without Brazil and Argentina.
Argentina, Brazil, Uruguay, Peru, Colombia,
Ecuador/Bolivia/Venezuela Combined Team.
USA, Mexico, Costa Rica.
CONCACAF without Costa Rica, US and Mexico.
Australia, Saudi Arabia, Iran.
China, Japan, South Korea.
East Asia, West and Central Asia.
Ghana, Cameroon, Nigeria, South Africa,
Algeria, Morocco, Egypt.
North Africa, The Rest of Africa.
Other all-team specialized or regional teams:
Sao Paulo State, Rio de Janeiro
North/Northeastern Brazil South/Southeastern Brazil.
Brazilian players capped by other national teams.
North East England, NorthWest England.
Black English players.
United Kingdom 1970.
Players born in the Overeseas Department and former French Colonies
North Rhine-Westphalia, Bavaria.
Surnamese-Dutch Bext XI.
North Holland South Holand.
The rest of Holland excluding North and South Holland.
Southern Italy, Central Italy.
Northern Italy(excluding Lombardy) Lombardy.
Basque, Catalonia, Castile.
If Yugoslavia went to USA 1994.
This is my selection of a 25 member all-time team for the club. The number 25 was chosen because it is the official squad size for the Champions' League.
La Liga (Spain)
Real Madrid, Barcelona, Valencia,
Atletico Madrid, Sevilla, Atletic Bilbao,
Deportivo La Coruna Real Sociedad.
Serie A (Italy)
AC Milan, Juventus, Inter Milan,
Roma, Lazio, Torino, Napoli, Fiorentina,
Primeira Liga (Portugal)
Benfica, Porto, Sporting SP.