Like most people, I started at 50/50 and never really paid much attention to it. When I order juices, however, I always order at the vendor recommended ratio if they have one. I started noticing that a lot of the vendors I liked had suggested high PG/VG ratios.
During Black Friday, I ordered a ton of juices, some from vendors who were high VG or 100% VG. I definitely did notice what people say about high VG juices having better vapor and lower
throat hit.
The kicker for me was a flavor I bought after sampling at a B&M. All the samples at that B&M were 0mg so I couldn't judge the
throat hit. When I got the 12mg bottle home, it tasted amazing. Even better than when I was sampling it. However, I wasn't getting any throat hit from it. It was incredibly frustrating because the flavor was so good. I ended up googling the vendor and found out that they make their juices 70% VG. That pretty much clinched it for me.
At this point I consider myself a high PG guy.