I understand the former is easier, but here's the broader question (that does not necessarily have an implicit answer): Is shorter panel-writing just sparser than longer panel-writing, with less stuff mentioned, or does it involve an ENTIRELY different approach so that a different desired effect can be achieved?
For ME, I approach the two from a completely different creative space. If I were to write a long version, then simply cut out stuff, or condense it, I'd end up with a very choppy script...that probably wouldn't read so well.
For ME, having a script read well, be compelling an entertaining on its own merits is important...because I want the artist and editor to be entertained, instead of struggling to visualize what I'm hoping to achieve.
But that's just me.
What about you folks?