Coke? Pepsi? Neither. Dr. Pepper is the real stuff! This stuff has been around since the 1880s, served first in 1885...before both Coke AND Pepsi. It should be the real #1.
Definitely Coke, Diet Coke in fact. Can not get into Dr. Pepper though, but everyone else I know loves it.
Okay, I'll respect the difference in taste. I'll say one thing--it was invented by a pharmacist in Waco, Texas. When it was introduced to the public at Morrison's soda fountain, a store owner who really liked the drink, his guests kept asking for a "Waco"... Glad that name didn't stick.