world cups are finals...
Edmonton Eskimos with 13
Romania participated at seven Rugby World Cups.
Toronto Argonauts with 16 wins over a 98-year period.
Toronto Argonauts have 16 Grey Cup wins from their first in the 6th Grey Cup in 1914 to their win in the 100th Grey Cup in 2012. The team that has won the most grey cups in a row would be the Edmonton Eskimos who won 5 in a row between 1978-1982.
Winnipeg Blue Bombers with 24 appearances, followed by Edmonton (22) and Toronto (also 22).
Toronto Argonauts-16 Grey Cups 1914, 1921, 1933, 1937, 1938, 1945, 1946, 1947, 1950, 1952, 1983, 1991, 1996, 1997, 2004, 2012.
Team of Brazil has won the most Football World cups.
If you are asking the most world cups , then it is Brazil with 5 world cups.