I had an 18oz. White widow from unknown breeder (seed was given to me).
I personally think there's a pay off with big plants. Not as frosty or terpy in my experience.
I grow in 1m Square, around 500w of cobs in Wilmas. I'll grow 3 at a time with autos, 4 with photos (Coz of the control I have).
When an individual auto goes big it will dominate the other 2. They're a pain in the arse, trying to train or of the way. My latest round of autos I've got 2 gone big!