Kirkland alkaline batteries are made by Duracell. Watch for fake duracells. There are many out there. They do leak!

Tips to identify authentic Duracell Batteries:

- The label on authentic Duracell batteries will not peel off. If the label peels off, you have a counterfeit battery.

- Authentic Duracell batteries have a batch number laser-etched or stamped into the plastic label. It is rough to the touch -- not printed.

- Duracell uses recycled paper in their packaging. If you look at the back of the package, the card-stock should look dull, or similar to a newspaper. If it's bright white, it's suspect.

- Duracell batteries are packed flush to the bottom of the card-stock. You should be able to stand authentic battery packs upright without them falling.

- Duracell states that authentic batteries may be manufactured in Belgium, Germany, China and the United States.

- Other possible signs of counterfeit batteries include spelling errors on the package or poor picture quality.

I agree about the Eneloops. I have (literally) 18 radios that I keep Eneloops in. 12 of those live mostly in their cases in a drawer. I take those out every 6 months or so and cycle the batteries for freshly charged Eneloops. 
A coup[le of those radios are in excess of 15 years old.  I have never had one of the batteries leak. In fact, even with frequenting places that discuss batteries often, I have never yet heard of a NiMH battery leaking. That doesn't mean that they don', but I think it is exceptionally rare.
I do find that I get slightly less runtime out of them versus a fresh set of  alkaline batteries. But it is not a real problem, as I always keep a charged set on hand.

I have gone through and replaced nearly all of the AA cells in all my devices with the NiMH cells. I have gotten real tired of going to use a device and having to clean it up, or discard  it dues to cell leakage. 
I have tried all of the major brands and had all of them leak. I think that Duracell are the worst, with the "Kirkland"  batteries from Costco coming in a very close second.