I think unfortunately in many cases the question of what is best has to be considered within the question of what can the client handle. Even if a CF WOD is best in ideal circumstances, there are plenty of folks, particularly in the weight loss crowd, who simply cannot perform them. When scaled to their abilities, they resemble the WOD so little I have to wonder how effective they are. In the case of extremely reduced volume, it's clear there must be some supplemental work, e.g. intervals.
So yes I would say the classic run/row WOD is ideal, but for those who can't handle adequate volume/ROM/etc. to maximize intensity, intervals following the scaled version is the best we can do.