It *is* an old question but it's still an important one.
VG produces a thicker/fuller vapor than PG but it comes at a cost. VG *robs* both flavor and TH. 'Tis why most of us prefer a mixture of the two. FWIW, I settled in at 70/30 PG/VG nearly two years ago.
Vapers will tell you that "PG gives a better TH". That is not exactly accurate and implies that PG, by itself, gives TH. It doesn't. None at all. Nor does VG, for that matter. VG masks more TH than PG does. TH still comes from nic and warmth via voltage.
Best of luck...