I would go with the East approach. You can see the route from a distance when you leave the Condor Gulch trail at the Don Genaro overlook. There is a photo of Bruce standing in this spot on Mountain Project. I usually drop my pack somewhere around there.
If you hike up from the West you will need to drop your pack up by the Smokestack. That means hiking all the way up to the high peaks and all the way back down with a pack. More hiking with a back pack from the West.
Also, I suggest not taking a pack on the route.