here in the uk,i usually fit textar or pagid brand brake pads.
we also have an ate brand which good ones.
your other problem is the abs antilock brake system being activated-you describe it as a pulsating action noticed during braking-it is normal to get this pulasation in the snow when traction is low.
why you should get it at low speeds is a bit of a mystery because the bs is only supposed to come on if the car is about to skid due to icy road conditions or other slippery conditions.
hope this helps.