Coca cola is a HORRIBLE HORRIBLE HORRIBLE company. Seriously, it's way down there with the completely unethical, uncaring, unbelievably disgusting brands. Many Coca Cola products also contain fish gelatin.
I do actually like the taste of cola (real cola, I mean) such as Whole Earth cola which is really lovely, and there are some "victorian style" fizzy drinks in pretty glass bottles which I also like but I've forgotten which company makes them.
At the end of the day, it's all frightfully bad for you. It's either full of sugar which rots your teeth when you swill the drink around your mouth, full of acid which rots your teeth too, and/or contains aspartame, which is responsible for a multitude of health problems.
Sainsburys do sugarfree, aspartame free fizzy drinks which are quite nice (and hard to come by!), but I don't drink them often.
So not a massive fan of fizzy drinks!