I was a Pepsi drinker for well..most of my life, but I just recently had the chance to play with Coke in Bestbuy and its tab was so much more user friendly and it had a better taste once I got used to it as well, so I bought the Coke and I love it! Coke is also so much nicer in appearance, its shape and form are pretty much work of art and I don't mind paying a bit more for that (Coke is $2, compared to Pepsi's $1.25), even though coke and pepsi use the same caramel 56 coloring and amount of carbonation, coke seems to use it much more efficiently. Still have to deal with Pepsi at work all day, and it goes flat all the time, but replacing the flat with new keeps me in a job so what can you do. 
Gosh, I thought this thread was long since dead 