I used to work for a vape shop in the Pacific NW(seattle area) called Ecig-N-Vape, the juice maker there was this super cool guy that was always trying to make everyone happy, so he put out this whole line of about 70+ flavors that were ok, but they were meant for new vapers, so they were all really strong. He finally put out some of his personal stuff and it was AMAZING. He has a Strawberry Rhubarb Crisp that is the only strawberry I can taste in a vape(I'm one of those people).
Also Bad Modder Fogger puts out some really amazing recipes. I'm a particular fan of Mister V, it's a pretty damn good blue raspberry poprocks.