Who would build the best pyramid?

500 Serbs
500 Croatians
500 Albanians
500 Moldovans
500 Romanians
500 Hungarians
500 Greeks
500 Slovenians
500 Bulgarians
500 Macedonians(?)
500 Ruthenians
500 Aromanians
12 Bosnians

and why?

Who would build the best pyramid?