I would say that atleast 80% of the beans I've ran in the past 10 years were feminized. Why? Just easier for my method of growing when I first started and with big outdoor guerilla grows it was a little less worrisome to not miss a male to me anyways.
Now I like running them because of time, space and of not dealing with 4 males in a row lol. My percentage on herms have been the same as with regs. I've only had a few in my whole growing life, few outdoor, a few indoor.
I stick to cheaper trusted breeders for the most part.
3thirteen seeds,
@HydroRed never had an issue with and great smoke.
CSI, lots of choices and good ?
Esosseeds,
@thenotsoesoteric great strains as well as the smoke.
Royal Queen Seeds, might have to look harder for a keeper but still stable genetics.
Cannarado, same as the rest of the cookie strains but stable for the most part.
Female Seeds, first fem I ever popped, white widow. She turned out great, solid white frost with a very heavy stone.
Green House Seeds, I've grown a few of theirs as well. Mostly average smoke but every once in a while you would find something good in their older stuff.