I spent about a year and a half not liking BWB RY4. Started out loving it, then fell out of love with it and remained separated for 18 months with less-than-wonderful feelings, then gingerly tried it again about two months ago and discovered, to my surprise, renewed appreciation and enjoyment.
I agree with your feelings about both Casablanca and Applewood. I liked Casablanca some early on, but it didn't hold up for me, and I've never liked it since. Applewood is nice, although I don't find myself vaping it much, so it must not be that good to me. I still have most of my second 15ml bottles of both, now 2 1/2 and 2 years old, respectively. Of the 12 BWB tobaccos I've purchased, I like only about a third of them.
Ahlusion JG Blend is (to me) a tasty and pleasing tobacco-coffee vape, but I've got at least three other tobacco-with-coffee or coffee-with-tobacco juices that I like just as well, including one made from my own home-brewed NET and NEC (naturally-extracted coffee). Assuming good tobacco and good coffee flavorings to begin with, the tobacco-coffee combination is hard to mess up.