The beast kit I have isn't real good at running tight timings at lower clocks, I'd give the trident kit the edge there.If you can get the beasts to run 2400 + they can keep up with most kits. Just kind of depends on if you want good latecy or good thoughput.
Very similar to the ones I have , but it may be hard for certain cpu and motherboard combinations to get them to run at rated speeds etc.Most people have better luck with 1866 to 2133 rated kits with tighter timings. Such as the Tridents i listed earlier.
Again, single density, which will run at a higher frequency , but perform poorly compared to double density. In my case , it's been impossible for me to run at a high enough frequency to allow it to perform better than my double density kits.
Sorry,The point I was trying to make was that the same kit may not be the best in all situations.In your situation I might suggest Gskill tridents such as these - http://www.newegg.com/Product/Product.aspx?Item=N82E16820231623But there are other members here that are a much better resource for advice on memory.