What Lens for Luggability?

I personally would go with a three lens setup just to cover a wide range of shots. I would have one the standard kit zooms(more than likely Oly 12-50mm for the 12mm wide angle, and macro support), a fast-ish prim, either the Panasonic 14mm f2.5 or 20mm, and a longer reach zoom Panasonic 35-100mm if price wasn't a factor. But, if price was a factor or 100mm is to short of a reach for your taste, then Oly 40-150mm, or either the Panny 45-150mm or 45-200mm.