I don't really have a "favorite flavor" as much as I have a favorite flavor range, it appears. Unfortunately, that range includes caramel, cinnamon (spicy and sweet both), vanilla, and nutty. F'rinstance, I have a tank with Cinnamon Roll in it right now (vanilla, cinnamon, pastry flavors), and I have a tank with a blend of BWB's Nutty, Liberty Flights' Almond, and a couple drops of sweetener in it. (BWB Nutty is good on its own, but it's too potent of a hazelnut for me if I don't cut it with another nut flavor.)
Of course, I'm presently vaping Gummy Savers, so go figger.