agree with ziemas. cable locks can be busted with tools you can easily carry. chains, and especially 6 sided kryptonite chains, need something like a 42 inch bolt cutter (and a strong fat man to jump on it) or a power tool to bust. of course u locks can be busted by a relatively small bottle jack, but not if the lock is small enough and all the space inside is occupied by your rear wheel and seat tube.

again, it makes no sense to invest in a fancy padlock and use it with a cable.