"After we vote 'c' off alphabet island, my next vote is letter 's'. It is way cooler to replace it with a z."
Apart from being much cooler, its also far less interesting to replace it, as we use Z for another sound.
Apart from Chinese, no big writing system survived that doesn't use an alphabet. The reason is simple. Its much easier to write a word correct when you know how it sounds, or to read a word you don't know correctly. Most Chinese Characters you have to learn, even if there is some system in it.
In short, an alphabet is good because you know how to write a word by its sounds. Everything else is useless extra work. If the Spanish can do it (they haven't got a single exception!), why can't we evolve?
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