Most of my dog "play growl" a lot, especially when playing tug of war.
But, as for real growling .... well, a couple of them have issues, that's for sure.
Twister has a major fear-aggression problem. The slightest discipline, even just giving her "the look", and she is bearing those teeth. It's been a long road, but she's improving, to some degree. When I first got her, she bit all the way through my hand!
Basil was a terribly dominant dog when I got him. In fact, he was taken to animal control to be euthanized for aggression. He was, though, simply a dominant, unneutered male terrier who had belonged to very quiet, timid people who feared him. NOT a good combination. He growled and snarled and barked at everyone when I got him. It was 95% bluff, but would definately be intimidating to someone who didn't know terriers. He is MUCH better now .. almost like a normal dog. 
All of my dog were rescues, with past home ranging from zero discipline to horrible abuse, though ... so they have more issues than your typical family pet. All the nice typical family pets, I found homes for ... I got stuck with the rejects.
"We give dogs the time we can spare, the space we can spare and the love we can spare. And in return, dogs give us their all. It's the best deal man has ever made" - M. Facklam
"We are raised to honor all the wrong explorers and discoverers - thieves planting flags, murderers carrying crosses. Let us at last praise the colonizers of dreams."- P.S. Beagle
"All that is gold does not glitter, Not all those who wander are lost; The old that is strong does not wither, Deep roots are not reached by the frost. From the ashes a fire shall be woken, A light from the shadows shall spring; Renewed shall be blade that was broken, The crownless again shall be king." - J.R.R. Tolkien
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