The ECF Library - E-Cigarette Forum
Read that, there's a section just for PG/VG
PG: More
throat hit, more flavor transfer (taste more), less vapor, thinner fluid, may irritate some people
VG: Less throat hit, less flavor transfer (taste less), more vapor, thicker fluid, less irritation for some
Personally I prefer VG because PG hurts my throat. And I hate throat hit and like more vapor. Also I found that the thicker liquid works better in my 510 BFD
mod, but most people find the exact opposite.