You have gotten a lot of great advice on here. Throat hit can be achieved with higher PG higher nicotine and some flavors such as mints or menthols even add a harshness. Some vendors sell additives that are supposed to add throat hit but that seems to be a hit or miss with people.
As far as 100% VG goes I have found the same as the rest here have posted. It is all in the mix of the flavor. If the vendor does not add a significant amount of flavor to their juice it is very bland.
I found that
AVE-Juice is very flavorful and 100% VG... so strong in flavor I sometimes have to cut it with straight VG. That's just me.
Also
Gourmet Vapor has the option of doubling or tripling their flavor when you select a juice flavor.... With them I use the double flavor to vape with 50PG/50VG or if I am making my own juice I simply triple the flavor. Again it is personal preference.
If you can tolerate PG consider yourself lucky and enjoy all the different vendors and mixes out there. Myself I can not vape anything higher than the 50/50 mix or asthma strikes.
I am sure there are more vendors with great 100%VG mixes and just as strong flavor as the ones I've mentioned. I am always open to trying new vendors and plan to look at some of those mentioned above.
Good luck and keep asking questions.
EDIT: almost forgot I was a 1/2 PAD smoker and had to start with 24mg juice because the 18mg left me craving the analogs... Find the taste and the nic level that keeps you satisfied then later on down the road you can worry about diluting the nic amount.