Tried them both :-) IMHO ….. Coke C2 has an artificial sweetener taste. To me, it was very obvious. Tried the Pepsi Edge yesterday and "wow". No artificial sweetener taste. A little sweeter than the regular Pepsi, but in a word.... Awesome! Maybe it’s because Pepsi’s product is sweetened with Splenda only, but imho, it tastes much better. Wonder how come Coke did not opt for the straight Splenda sweetener. Hmmmmmm