I enjoyed all four chai lattes, but the one from Starbucks was my favorite. I thought it balanced spicy and sweet really well, and the consistency of the creamy drink and the foamy topping was ideal.
But at $0.35 an ounce, it was tied with Peet's for the most expensive drink of the day.
Panera's chai latte was my second favorite. It was creamy and smooth, and it had a nice flavor. It was a little spicier than I would've liked, which is why it came in just behind Starbucks' chai.
Although it was the most out-right expensive option, it was larger than Starbucks', so it ended up being $0.33 an ounce.
Dunkin's chai latte offered the highest value by far at $0.13 an ounce. It was really creamy, but it was lacking enough spice to really taste like chai.
Peet's latte was the spiciest of the four. I liked this drink, but the unexpected earthy flavor wasn't my favorite, and it was tied for most expensive at $0.35 an ounce.