Apple juice, BUT, it depends on if it's freshly juiced, or store bought. Store bought apple juice can often be really nasty tasting, I'd much rather have store bought orange juice, but freshly juiced apple juice where it's all pulpy... so delicious.
I don't understand how people are hating on pulp so much, honestly the best drink I've ever had was this japanese mandarin drink loaded with the little pockets of juice from the fruit, I don't know what sorcery they used to bottle it like that, but it was the best drink everrrrr! The only pulpy drink I don't care for are aloe drinks because it feels like snot going down, but I love pulpy orange juice and lemonade! It's where all the flavor and nutrients are!