I'm wondering what people's opinions are. I've heard some people say that the minute you add juice or a mixer to liquor, it doesn't matter what brand you should use. On the other hand, I've had an experienced bar tender tell me that it does make a difference to use quality liquor, especially if you are using real fruit juice. My personal observation, and I don't pretend to have a particularly distinguishing palate, is that I prefer the higher end brands even in drinks such as margaritas (made with fresh lime juice) and a vodka/pomegranate juice "martini". In the case of the latter, I use Gray Goose, and noticed, when trying out a cheaper brand, that Absolut wasn't nearly as "smooth" in the drink.