I am a coca cola addict, I would take coca cola over pepsi 99% of the time (1% when I just feel like something different for a change). I can say if coke in a glass bottle is different cause I just can't bring myself to by such a small bottle (which will never come close to even half a satisfaction) for so much money.
I prefer a plastic bottle over a can because the bottle (for starters) does not give that metal taste I can't stand. It's like drinking water out of a hose, you get the rubber and metal flavor in the process. Also I get more gassy with a can than I do with a bottle (beats me why). And last, I can always close the bottle and reuse for water. Apart from I like the shape.
But, when it comes to flavor, I much prefer soda fountain soda. For some reason the flavor is usually just right for me and the ice helps big time (love soda with plenty of ice). I try to go to 7-11 when ever I get a chance to drink from the make-your-own-flavor soda machine. It allows me to add lemon, cherry and/or vanilla flavor to any of the sodas available. I am partial to cherry/vanilla coke but don't mind lemon every once in a while.
My mom use to tell me stories about the stuff they use to by as children and I always remember how she told me during shool she would go to the store with a dime her parents gave her for school (wow, a dime) and walked about with a glass bottle of coca cola (twice as bid as todays 16 ounce bottles) and 3 cookies. I can barely get gum with $1 these days. Amazing the changes thru out the years.