Diet soda makes me want to punch a jellyfish in the face. Seriously, it used to be that people drank drinks with real sugar in them, and they tasted delicious. Now we can't even buy soda with real sugar in it, we have to go to Mexico and import that shit. Even worse of course is diet caffeine-free soda, which tastes like failure in a can.
Really though, if you are trying to lose or maintain your weight by switching to diet products you are missing the point. You shouldn't change your lifestyle by consuming things with less quality, instead just lower the quantity of intake. Fuck, if you really want to feel and look better just drink some water, it is far better for you than any diet drink.
And lastly to the people who only stock their houses with diet soda, light beer, and low fat foods: You're being inconsiderate and are offending me with your bad taste; stop it.