This is an interesting issue. Today, I experimented with crosswind takeoffs in the simulator during recrrent training and may be able to add to the discussion.
Firstly, about 10 degrees of control wheel movement is required to cause spoiler deployment. This is a very small control wheel input, yet I found this was ample to maintain directional control with a 34 knot crosswind (maximum for my model B737).
There was only 2 degrees of bank on the takeoff roll, yet almost full control wheel input (and full spoiler deflection) was required to level the wings. My opinion is that large doses of aileron/spoiler are not required to maintain directional control.
Another interesting point was noted after a takeoff I had recently in a strong gusty crosswind on a wet runway. I needed quite a lot of rudder input (left rudder with a crosswind from the right) to cope with the gusts. After liftoff, the aircraft rolled quite hard to the left because I had failed to release rudder pressure early enough resulting in crossed controls to maintain wings level (it was a very rough night and I had a death grip!). I spent quite a while experimenting with this today and discovered the combination of a very small aileron input on the takeoff roll, and relaxation of rudder input the moment the aircraft unsticks, resulted in a very satisfactory takeoff at the maximum crosswind guideline of 34 knots.