When I can have whatever I want, I love a really good cream soda. Not just any cream soda though, has to be a nice one. 2 favorites are Blummers and IBC
Edit:
All of the Mexican made sodas.
Oooh yeah I love Coca-Colas made in Mexico. Still in the glass bottles and they're made with real sugar. Colas in general are awesome made with real sugar and from a glass bottle.