Sandisk Extreme III (any size - If I wanted to buy one I'd get the 16GB version.)
Just one reason - even before that the Sandisk was my favourite.
Sandisk cards are pretty safe, pretty fast...
But in fact in this case another SD card has won: http://www.youtube.com/watch?v=VUw9T4Sk ... ure=relmfu
Still my personal preference is the Sandisk. Panasonic got even better results with one of their batteries than you get with Sanyo eneloops. Still the eneloops are better known. Maybe because of their look?
EDIT: But I guess this thread fits better into this section: http://www.cameralabs.com/forum/viewforum.php?f=30