We have Advance,O'Reilly's,NAPA and Carquest.
I usually go to Advance or O'R depending on the cost of the part I need.If the part has a warrenty,the lenght of it may come into play also.
O'R tends to get on my nerves to some degree.You can hardly look around without someone asking you if you need something.Sometimes you just can get in the door without them doing this.
Dont get me wrong,it is good to be able to get help finding something when you need it but they tend to go overboard in my opinion.
I was in there about a year ago,there was a guy looking for a serpantine belt for his Mustang.They didnt have one but told him one would run around $40.
They guy left and so did I.We both ended up at ADV,they had the belt for $20-25 in stock.
NAPA is to high on their parts and I cant say that they are any better than ADV or O'R.
I had a water pump put on a few years ago,it was from NAPA.I dont remeber if it even lasted the warrenty or not and it costed quite a bit.
I went to ADV and got a pump,cheaper,with a year warrenty,it is still on the car and the warrenty expired some time ago.It may go out today but it has done better than the NAPA pump did.
Carquest is just priced to high.It seems that most of their bussiness comes from places that work on cars,CQ delivers the parts to them,that seems to be most of their sales.You dont usually see to many people there.They are just to high.
In my opinion,most people that take their cars to a place that works on them has little knowledge of parts and their prices,this seems to be where CQ cashes in.