Not new, but haven't been here in some time...
Alkalines are forbidden in my house. Maybe a bit rash or irrational to some, but I have developed a pure hatred of them for the fact that I have lost devices to them over the years, and rarely to the credit of my own thoughtless forgetfulness. I've had new Alkalines leak and kill lights after a month.
I use eneloop rechargeable AAs and AAAs for daily use, and lithium AAs and AAAs in kits or glove-boxes, in which case the lights go long periods without being used.
I did read somewhere not too long ago that 1.2V NiMHs drained too quickly for some applications and it puzzled me, because they seem to last a long time in the lights I use on a regular basis. Recently, I had to purchase a blood-pressure reading kit and got the one that pumps up the cuff and gives you an LCD reading. NOW, I get it. A set of four NiMHs last TWO readings in that monster, but they are perfectly adequate for all my other uses.
I'm sure the extra .3V in Alkalines are of extra benefit in some applications, but I just won't take the chance. The aggravating part is that many new devices come with complementary alkaline cells, which I remove immediately or just don't install, and chuck into the "dead cell repository" (plastic coffee can) to save for the annual recycling event. Trouble with that is that as of this spring, they no longer accept alkaline cells for recycling and recommend you "toss them into the trash, because a few won't ruin the world."
I've been using the same eneloop NiMHs since 2011 and 2012, over and over and have not thrown one out yet or purchased any new ones, so they are also cheaper in the long run and more convenient. I never run out of cells.