Base-Flange vs "old methods" for sheetmetal modeling

We have an ongoing dispute about changing our modeling ofsheetmetal parts to the base-flange method. I can't see why anyonewould still want to use the extrude or flat with bend lines methodsfor designing a sheetmetal part. What is the current method taughtin college where they teach SolidWorks? Does industry have apreference?

I would appreciate knowing what's out there.
Thanks,
MAP

SolidworksSheet Metal