Its hard to have a favorite breeder.. Most breeders specialize it certain things.. If I want chem, I go with SkunkVa/Lucky Dog.. If I want landrace, Coastal Seed Co.. If I want awesome one off hybrids Bodhi hands down.. Stable fems from clone only's, CSI.. Kush crosses, Katsu seeds. And it just keeps going, lol.. Most good breeders pick a lane and stay in that lane.. For autos I mainly run Sweet Seeds, Meph/NightOwl or Female Seeds. IMO, those are the three auto breeders with the best genetic transparency.
Seed banks? I only buy photos so, SHN, HeadieGardens, and GreatLakes basically. Im not really into the new hype strains and breeders.. Runtz, Exotic, 3rd Coast, anything "cake" etc... Although I do have/run capscut.. Not really sure about auto seed banks... I've got seeds from The Autoflower Portal.. They have some awesome meds and breeding stock.