Pepsi is sweeter, but I prefer Coke. Dr. Pepper, however is superior to both. And cream sodas, orange sodas, grape sodas, peach sodas and root beers are tied with Dr. Pepper. Bubble Gum and sour green apple sodas get an honorable mention. Oh yeah, Mountain Dew sodas are the best.
For the more visual learners:
Mountain Dews>>Cream=Orange=Grape=Peach=Root Beer=Dr. Pepper>Bubblegum=Sour green apple>Sprite(and similar)>Coke>Pepsi.