There is often a "sweet spot" for mic placement, and it varies with every guitar. I generally prefer a large diaphram somewhere out front, a couple of feet away; a small diaphram mic pointed at either the hole, the bridge, or the fingerboard tongue; and sometimes a mic over my head or right shoulder, hearing what I hear, especially with guitars having side sound holes.

All bets are off with pickups, but the common issue is lousy saddle transducers, poorly installed.

Peace, Mooh.