Came across this guy the other day:
https://www.youtube.com/watch?v=V7-ghrTqA44
He has hundreds of other comparison videos as well.
https://www.youtube.com/watch?v=-jXQNY6rve8 <--- same guy but rechargables including Ikea & Eneloop
thats a good test, 365 cycles in solar lights. laddas still seem like the ticket, tho the duracells are cheap and common as well
the rule of thumb from the CDR age still holds: buy 'made in japan' if you can