Coke, just plain ole Coke is my favorite. But you know who IMO has the BEST generic soda? Safeway! Their rootbeer is better, yes better, than A&W and Barques. Also their grape and orange flavored sodas are wonderful. They are like .99 for a 6 pack of their soda. Albertson's has the WORST generic soda. Undrinkable.
Also, I love ginger ale, some of the Hanson's soda flavors and will not TOUCH Pepsi. Nasty shit, ICK!