NAPA and Carquest because around me they are privately owned, the guys behind the counter know more than anyone thats ever helped me at autozone or advance, they can help with ag equipment, and I get fleet pricing through the farm. Moreover, I can get parts with a warranty from them and replace it once, whereas the chinky stuff from others may have a warranty but I still find myself replacing it again.
but some times those crazy guys out at the junk yard try to sell me stuff for more than it would cost brand new. i do my homework before going to some of those places and they have tried to rip me off more than once. i think some of them are junkies.
one time the guy who ran a yard tried to sell me a power steering pump for $50! i told them "B.S. i could buy one brand new for $30!". so they offered it to me for $35. i told them i was going to kragens! lol i have never gone back to that one since.