If you haven't liked other RY4's, you may not like any of them. I can't stand the stuff. To me, it's like vaping cologne. Other people love it, though. BWB is my favorite juice vendor and after seeing everyone rave about their RY4, I decided to give it a try. Once I tried it, I came to the conclusion that RY4 is like cantaloupe to me. Other people love it, but I just can't stand the stuff.
My favorite all-time vape is BWB Malty Toffee. It has a nice flavor, but it's subtle enough that you don't get sick of it. If you want to add a little bit of a compatible flavor to change things up, it works well for that, too. Sometimes, I add a little bit of Dulce de Leche if I want a sweeter taste.
I've learned that a lot of strong flavors taste great at first, but they soon wear your taste buds out. Subtle is better, IMO.
Good luck with finding a juice that works for you.