we always had the 24-70f4LIS kit here in japan.
and there are two EOS6D kits here :the 24-70f4LIS kit and the 24-105f4LIS kit.
the 24-70mmf4LIS kit is about 43000yen(roughly 430USD) more expensive than the 24-105mm f4LIS kit.
I have been debating which kit to buy for a long time, I've decided to get the 6D for its extreme high ISO capability combined with the -3 EV lowlight AF but not sure about which std lens to get with it.
I also consider just a 6D body alone +EF35mmf2ISUSM but it is cheaper to get the kit than the body alone.
the 5D3 is a great body but the 5D3 kit is just a bit too expensive , especially for a dual mount user like me.
if I decide I can live with only Canon kit , then I will get the 5D3 in addition to the 6D, though for now , I think I want to keep my Nikon and Fuji systems intact in addition to the Canon.
BTW, Canon says the 24-70mmf4LISUSM lens got some special tough coating to protect the front element of the lens and this is why the lens does not need any filter to protect the front element of the lens.
If this is true , I will get that lens with the 6D.