Don Julio reposado and anejo tequila
Arizona grown boy here... on a hot summer day, tequila just works better with light citrusy flavors, lime & grapefruit in particular. Either a shot of anejo with a slice of fruit on the back, or the reposado mixed with cold citrus fruit juices and a touch of agave nectar.
I still don't understand what happened to the pricing of tequila. Prior to 2000, it used to be a reasonably priced spirit. Now, pricing has gone through the roof.