You'll have to elaborate on that.
I just think too many American versions are too boozy and not what I'm looking for in a doppelbock. The old adage was always "when you drink a doppelbock you don't feel the alcohol till you stand up". That's how I approach it when I brew one. I've had plenty of doppelbocks that tasted closer to barley wines and just don't care for 'em.
I'm a fan of Sam Adams double bock but I can see that as bigger than the classics like Celebratior or Salvator.
I personally prefer the bigger versions. I'm not going to drink more than two anyway after the kids are down. But an 8 oz snifter is more appropriate for cognac or Armagnac.
In the case of the OP though once you've got the bigger beer you need to go with it.