Although i listened to the examples on my integrated laptop-speakers, i could hear this:
A keeps the transients very good alive and creates an "expensive" impression therefore. The kick get's a nice full and warm sound (i mean the transients, the bass i can't here here
Especially with the 6dB example, it doesn't bring up the mids so much (which are annoying on my laptop anyway
I find B and C are bringing up the mids too much, produce no "pressure" and reduce the rythmic feeling. One of those two, did even something annoying with the transients of the cl hht/shaker.
After the first impression, i found D also quite good in the 3dB example. But in the 6dB example, there is a big difference to A.
A is my clear laptop loudspeaker winner!

