City won the league in 1968 and United won the European Cup 2 weeks or so after we had clinched it.
But for the 21 seasons after that Including the 70s and 80s we won more.
And for 22 complete seasons since the millenium including the 00s and 10s we have won more.
TBF they did have the upperhand just for the 90s :)
1968-1969 to 1988-1989 (21 seasons)
Major trophies: City 4 -3 United
City:
1 FA Cup (1969)
2 League Cups (1970 & 1976)
1 European Cup Winners Cup (1970)
United:
3 FA Cups (1977, 1983 & 1985)
2000-2001 to 2022-2023 (22 full seasons since the start of the millenium)
Major trophies: City 17 - 16 United
City:
7 League Titles
1 Champions League
3 FA Cups
6 League Cups
17
United:
7 League Titles
1 Champions League
2 FA Cups
5 League Cups
1 Euro Leage (losers cup - shouldn't count :))
16