I've always preferred the Home Depot to Lowe's but lately the prices have been identical....right to the penny.
Maybe in some items, but not all.
Number 12 AWG THHN in almost any color is $60.00 at Lowes, and $50.00 at Home Depot. Same exact item, $10.00 difference, for a 500 foot roll. This same item at most electrical supply houses sells for $62.00 to $65.00. I buy 30-40 of these a year - so it adds up!
Home Depot is definitely geared more for selling to contractors - their packaging of various items (receptecles, switches, conduit fittings, breakers, etc.) is in quantity boxes, and is often cheaper than any 'wholesale' supply house). Also, 14/2 and 12/2 romex is much cheaper at HD. And it's even better if I get a 10% off coupon in the mail!!!

I do agree that customer service at HD sucks though. I know more about there inventory than most of their employees do anyway, so I never need their help.
Menards in Dundee??
SWEET!!!