Just tried this three times in a row with three different fortified wines and Cimarron reposado for the tequila. Noilly Prat dry left this beyond mute. Lillet Blanc added little interest. Cocchi Americano, on the other hand, seemed like a fortunate partner. My gut says use a bianco, depending on the apple juice used. I went with an unsweetened, cloudy organic brand...
This was great, but not what I was expecting. You can really taste the tequila. Went great with a Mexican food dinner, but would work with also with any spicy or flavourful dish.