I find e-juice flavors to be a bit elusive and, perhaps, have an ADD palette
. In fact, I have never had what I'd call an "all day vape". I usually do have a primary, that I vape most of the day, but I'll always have something around for comic relief, or a palette cleanser. I find that the time of day matters a lot, as well. The best time is after a nice spicy lunch of Thai food or something. My fav juices are just amazing at that time. I also find that after a couple of days, I need to change the primary.
Currently my fav vendors are Virgin Vapors, Ahlusion, and Five Pawns. Five Pawns is a little pricey, but their Queenside and Gambit juices are amazing to me. The former is a creamy blood orange, and the latter a wild apple with pie crust, among other flavors. They are fresh, real, and a little complex. Definitely top-shelf and worth the occasional splurge.
With Virgin I love their Kona Velvet Milkshake, but I'm at an "off cycle" for it atm. I have a bottle steeping now.
One of my favorite, but most elusive, juices is High Caliper Caramel Cappuccino. When it's working for me, it's fantastic, but much of the time it's a bit off. It even tastes a little chemically at times. I find it's never a primary but a good complementary side vape.
Guess variety is the spice for me