I recommend going with the most simple, quickest, phase-friendly, and easiest to mix approach. That means using only one mic, and placing it halfway inside the hole of a ported head.
There’s really no reason to reinvent the wheel, as countless, great-sounding recordings have been made with this mic placement.
However, if the kick drum you’re recording does not have a ported head, you can try these options:
//Jon
Twitter: @stsn