When answering the question, "What controls AoA", I think it is important to separate the dependent and independent vaiables.
I my opinion all of these are tied together by airspeed which is a dependent variable. It relates to weight, power, ect which are independent variables. I think that I may be right in saying that all equations with AoA in them also contain Airspeed or Dynamic Pressure.
Sorry if thats wrong!
JRSB