I usually keep a few bottles of blancos around for mixing, always including Siete Leguas and El Tesoro. For a mixing reposado (paloma, etc) I think it's hard to beat Espolon. And Casa Noble and Ocho are my favorites añejos for drinking neat.
FWIW I've tried a few other blancos recently including KAH, and while it works reasonably well in a margarita, it's not entirely to my taste.
FWIW I've tried a few other blancos recently including KAH, and while it works reasonably well in a margarita, it's not entirely to my taste.