Does Smell Mean Better Bud..

I have this one plant that put out a
danky smell.. and funny thing is i got it
from bad seed.. the new york diesel plant
has a smell but its very lite.. My plants are
like 2 weeks old..

Question 1
Does the smell mean better bud.??
cuz everytime i smoked some weed that was good
it smelled danky good..


Question 2
there are glittry white dust on the leafs
of the one that smell danky.. the others
have the glitter but not much...
what is this glittery white powder..???