In the Ki Aikido that I practice very little emphasis is put on stance at all. Its more about choosing what suits you.
But when looking at my own, my weight is 60-40, 60 being the back leg.
Classic T stance back foot, but my front is out to an angle, about 35 degrees rather than straight (like the picture of Takeda Sensei -Daito ryu). Hands and arms are relaxed an rest just above my thighs hands pointing forwards.
It feels very different to that used when I've been doing Aikikai which is alot more 'structured' with a more right and wrong approach....