We deliberate or ruminate upon stuff when we have that luxury, so rapidly timed events as in Libet are too limited in scope. I kinda like Frankfurt’s notion of desirability of desire and Dennett’s allusion to deliberative self-control. But I think free will is a crappy term and we should instead focus on deliberation and impulse control. Libet’s experiment seems to be targeted at the impulsive level.
Free will isn’t free in the metabolic sense, which shows that all thought and behavior relies upon the currency of ATP. Though I dislike him Sam Harris had pointed to how much further the decision cascade goes than Libet based on fMRI studies. And Daniel Wegner had done a wonderful job showing how we are outside the causal loop of our decision making processes and yet still claim authorship over our actions.
And however much control we think we might exercise in the here and now we are still at the mercy of stuff way outside our control (attributed to luck and fate). Granting too much weight to volition goes along with blaming people for their circumstances and overplaying moral responsibility.