Err... you are a German. Your country also uses an electoral college to elect your President.
Apples and oranges. The President of Germany is not as important a position as the President of the United States.
I am a fierce opponent of the
Bundesversammlung (the official name of the electoral college, within whose remit the election of the
Bundespräsident falls), but it does have two advantages over its American counterpart:
1.) Each
Bundesland dispatches a number of delegates to the
Bundesversammlung proportionally to its number of inhabitants. (Half the delegates are "born"
(geboren) electors, i.e. members of the Bundestag; the other half are "chosen"
(gekoren) electors, i.e. selected by the state parliaments.)
2.) There is no WTA mode when selecting the delegates.