Eneloops are pretty much the top of the heap. I'm very pleased with mine.

I've also had very good luck with Duracell's pre-charged AA/AAA line (white tops, made in Japan). These are widely believed to be rebranded Eneloops. I stock up when they come on sale at $7-8 for a 4-pack.

The value of a single channel, intelligent charger cannot be emphasized too strongly. I have a Powerex/Maha and like its advanced functions. But the one I use most is a Duracell CEF23DX4N with the 12VDC plug; I now have three of these, and they can be had for under $20.

With these good chargers, I am able to revive and use cells written off by others as junk. That's perfect in my belt light, which sees a lot of use. And since I have a 12VDC solar panels set up, I can charge my batts off-grid (and that's mostly what I do every day).