[dataflow]

There's no universal answer here. It depends quite a bit on the people, the topic, the prior context each person has, their abilities to formulate their thoughts effectively and (last though perhaps not least) their writing/typing speeds. Heck, even when all of these factors are the same, different modes can be more efficient in different situations, depending on what kind of outcome you want (say, an exhaustive analysis vs. a quick sketch of an idea). I'm not sure why anyone would claim or expect a universal answer here.