Take your pick. I usually think the latter tends to be the same as the former anyways.
Personally, I don't care for WalMart. Their service is ass, I'm usually irritated ny their clientelle as much as their staff, I can never find anything, their bottom-dollar goods are shit, and their prices are usually better only by a menial amount. Every time I walk in there, I walk out pissed off. I also don't approve how how they do business and cut corners with their suppliers and the community.
I haven't gone into one since about 2004 and don't plan to anytime soon.
Only other store that irritates me even close to as much is IKEA, which is too bad because I like their stuff.