I would go with Bobs concept to a large degree. Although it may sound very 'un -aiki' I think dominance is a pre-requisite for a good Aikido technique; making sure that you take advantage of their attack and constantly open that disadvantage up wider and wider (putting them in positions for atemis and pins or throws).
This is very well illustrated by the simple Tai-atari uchi otoshi (i.e. an entering throw where you affectively push uke off balance with your extension). It requires a feeling of dominance (without clashing), as well as all the 5 points mentioned above.