I've used the Walgreens alkaline supercells a lot, and generally pick some up when on sale. No problems at all!
Best consistent non-sale deal I've seen is a 36-pack of Rayovac Alkaline AA's for about $12 at Wal-Mart. I also use the Rayovacs a lot, with excellent results.
Dollar store batteries aren't an option for me, as almost all of my use is in a digicam.