The Burke & James has the advantage of a rotating back, handy when taking vertical format photos on a tripod. Unlike late Speed Graphics, it also uses the easy to improvise 4" square lens boards. However, I don't remember ever seeing a rangefinder on a B&J. That's no problem for many large format photographers. The later Speed Graphic cameras have fold-down infinity stops, which are an asset when several lenses will be used. Most will have Graphic backs which help if one uses roll films. Build quality on the Graphics seems better to me than on the B&J.