I drink (regular, plain, old, delicious, don't touch it unless you have a death wish, orange pekoe, PG Tips, builders) tea. With sugar. I like iced tea but rarely make it. It's a great idea and I'll think I'll make a batch this weekend.
I love iced coffee even more.
When I need a boost on a long ride I will happily succumb to an ice, cold can of Coke. Much tastier than Gatorade (yech).