Football

This is stupid. Barcelona are one of the greatest teams of recent times. Chelsea have achieved a great victory in beating them over 2 legs in the semi-finals. It doesn't make Barcelona less of a great team, or diminish Chelsea's achievement to admit either.

On the other hand, if you want the silliness to continue, Athletic Bilboa, currently 6th in La Liga, beat current PL Champs & leader Man U 5-3 over 2 legs.

Does this prove the inferiority of EPL relative to La Liga?

Although your argument is undoubtedly better founded, I still think the pl is better. Although there has been both characteristic (liverpool/man shitty) and uncharacteristic (man u) falterings this season, i just don't think in its entirety the teams in la liga are as good.