There are much better choices on the market. Those two are not exactly up-to-date tech.
IMO Corsair makes the best RAM available at the moment. Great out of the box, and handles overclocking better then most anything else.
But those, I would not go anywhere near, even with that name on them.
In any case. Unless you need/want to go straight to 32Gb now, there is no reason to pay more for the 2x8. Ram is cheap as dirt (even the good stuff), so if the need arises later on, prises will have dropped to a point where the overall expense would not be all that different.
But by that time, you will most likely be looking at either a major rebuild or a new complete build, since other parts will most likely end up bottlenecking before the RAM does.