[KevWind]

Like Doug said you appear have a reasonable concept of the basics as far as a place to START experimenting .
And Doug is right there is a common misconception (especially among those new to recording ) that for a "bigger" sound more mics and tracks is better
When in reality almost always the opposite is true.

All mics will introduce some noise
All mic recordings will have (usually and especially in the low frequencies) buildup that tends to muddy the signal
So the more of this mud one introduces by adding more mics, the more it tends to rob the overall sound of clarity which tends to reduce the clarity and 3 dimensional quality (or bigness ) of the sound

Unfortunately there really is no one pat method or answer . So much depends on your particular playing style ,your equipment , your room and most importantly your personal tastes and preferences
You may like the uniformity of the matched pair OR You may prefer the sound of two different mics, or one mic , and the pick up or two mics and the pick up . Only with experimenting with your gear and experience will you come to know what works best for you BUT I agree with Doug perhaps start with just two inputs and go from there.