Re: Poll: Who determines the outcome of a technique in aikido?
I don't think this question is answerable. It reminds me of "Who determines what opening is played in a chess game--White or Black?"
Across a big enough skill difference the answer always seems to be "The more skilled person controls the outcome." If I am training with a fourth dan, my partner can determine how the throw works out (or doesn't) no matter whether I'm uke or nage.
Between people on my level...I don't think either participant necessarily controls the outcome. Partner zigs, I zag, something emerges from that interaction. Sometimes it's recognizably more one person's intention than the other's--hopefully that person is nage more often than not--but frequently it's all interaction.