I said probably, and yes, it's not a ridiculous statement to make. There was this discussion in pre-season already, but I'll say it again - Chelsea's team is on par with City, if they can perform to their full potential. The amount of depth in the Chelsea squad is devastating, as shown by the League Cup win against Arsenal.
This is the teams compared, with players playing at their full potential:
Cech = Hart
Ivanović > Zabaleta
Cahill = Nastasić
Terry = Kompany
Cole >> Clichy
Mikel < Fernandinho
Ramires << Yaya Toure
Mata = Silva
Hazard >> Nasri
Oscar > Negredo (different positions, I know, but both teams play different formations)
Torres << Ag?ero
Obviously, the comparisons are subjective, but they're sensible. Although Chelsea aren't clearly 'better' on paper, they're not worse either (I said Chelsea's squad was probably even better than United's and City's, which clearly implies that it's a debatable point, which is not obvious either way).