Personally ...
Overall de Copa cyah touch the Euros. The quality of the Euros is more than a cut above. Iz football within football.
The Copa eh have no nuances. Copa iz flat out kill or die. Euro iz yuh could dead dis way or dat way or ... nah, lehwe kill dem this way. Or, if we have to die, we going out dis way.
Different types of drama.
The playing identity of the Euro teams is clearer.