The first batteries I bought in Jan of this year were 2 autos and 1 manual.... the autos are still going strong, the button on the manual went haywire and it's done for....
I have never had an auto go off by itself, but I have had my manuals go off in my pocket or backpack when the button gets pushed.
I am a big fan of autos, but then I am a carto user, attys and dripping don't interest me (too much trouble, but that is whole other thread

. )
So I guess it depends on what you are going to use it for.
Totally agree with the comment on boxers or brief, would add Ford or Chevy, red or green, Mac or PC, etc.....