I get coffee made with coconut milk when out with friends. Milky coffee is best. Skinny latte if there's no coconut milk. Soya milk isn't so good.
I have never tried iced cold coffee frappaccino. It's just stacked with calories as it's all thick cream! Iced tea with peach or lemon on a hot day. Nice.
Coffee is a diuretic and makes you need the rest room if you drank all day so dehydrates in large doses. A little caffeine can help keep headaches at bay if you have a busy day. And of course the antioxidants are supposed to be beneficial in moderation.
I am a tea drinker at home. English breakfast tea in morning. Mint tea is only herbal one I like.