Lately, the one I can't do without is Dekang 555. Nice light flavor and a good hard throat hit. Last week, it was BWB RY4. Don't know what it will be next week. I have a lot of different USA made juices, just sitting here. I'm about to order a lot more Dekang, so maybe I'll experiment and mix some USA made juice with the Dekang and come up with a different favorite.
When I first started vaping, I fell for all the hype for the USA made juices. When I first vaped them, I'd get good flavor for a few hits then, I'd then lose the flavor and constantly be trying to find that elusive throat hit.