yeah, don't get the BBD comparisons. sullinger is taller, has a much longer wingspan, is not uber-athletic but worlds beyond BBD, and has post moves and footwork that put davis to shame.
They're both players with less than ideal height with concerns about their weight.
If Sullinger ends up as a taller, longer, more athletic version of BBD with a better attitude, rebounding, and shot selection, I would be very pleased.