Andi wrote:What is the correct position for a minifig hand? Sometimes I have accessories which fit better in a position, and others in the other position.
If you reach your hand out forward to "shake" or hold a gun, for example, you notice that your thumb makes the top part of your hand stick up, so IMO LEGO hands would have the larger part on top. If you look at the FBTB banner image above, you can see what I mean... although the hands would normally be the other way... the "top" of the hand is on the blade side, and the "curved" part is the bottom part of the hand... it's not just conjecture; the "top" part is a standard "stud" size and you can attach bricks and other things to it, and you can't do that to the "bottom" side.
FWIW, I noticed this earlier this year (that they come upside down), and that being the case, paid attention to it since then and it certainly seems (at least this year) that the hands always seem to come upside down, even on the torsos I ordered from PAB.
EDIT: Actually, this is true for regular sets... for things like battle packs and magnet sets, when they're already holding an accessory, they come the right way.