PG makes my mouth and throat too dry, and if I keep using it I will start to get a sore tongue. Drinking water helps a bit, but not a lot. PG also irritates my grastric tract. VG does not do these things at all to me. So I make all my juices DIY VG, with the only PG from any flavors I use that contain it. Even then, if I make a juice with more than 15% flavoring I will start to have problems from the PG in the flavoring.
As for TH, like Kent, I am not big on TH. MY VG juices have plenty for me, and I prefer TH to be just from nic, not some artificially created throat irritation from PG that is meant to make me think I'm smoking. Even so, my VG juices have a much bigger TH than analogs, at least the Winston Lights I still have occasionally.
And I love the flavors of my VG juices. One can enhance the flavor a lot in a VG juice by adding a little PGA to the juice, although I personally do not do this. PG adds a flavor, or more accurately a quality to the vape that I am not fond of. Sort of sour to me, and not in a good way. VG is sweeter, and I like that.