I agree this is some real good stuff and if anyone has access to it they should treat themselves to a bottle. My recollection is that the PVW20 has a heavier mouthfeel while the JPS18 while an excellent drink was a little thiner and more oaked. With that said they do have very similar flavor characteristics and are both SW juice from the same time frame. Also note that there are rumors of some major variation in regards to quality from batch to batch. If anyone is interested there is a lengthy 18+ page thread related to this juice. Just google Jeffersons Pres Select 18 and forum and you will find it or you can PM me.
I have both open, I will do a vertical at some point this week and share my thoughts.
The JPS, is definitely one of my favorites, I have bunkered 3 bottles along with the open one that I am currently enjoying and it looks like our state just got another large shipment so a few more might wander home as impulse buys. If anyone needs help with a bottle let me know it is currently $69.99. Which is pricey but, given the quality of the juice and its historical signifigance is a pretty good deal.