Originally Posted by Minstrel

It depends on which one is closer to you in taste. If you feel that the "obvious" answer is the 30 year old, that just suggests that you identify more closely with that person. It's not a question of the 30 year old having a more objectively excellent opinion, it's a question of who's taste is more likely to be predictive of yours.

Speaking to popularity, I felt the whole Pepsi "taste test" ads were fairly stupid. If I like Coke better (hypothetically), what relevance does it have if every other human on Earth thinks Pepsi tastes better? When it comes to opinion, popularity is really quite irrelevant.