Like I said, don't ask us. We're not the Ubuntu developers. Most of us simply install a different desktop environment if we aren't happy with the default one. You have to understand that even if they did offer an alternative that was exactly what you want, there would be a bunch of other people who would complain that they want something different still.
I think the current system of offering one default desktop environment, but officially supporting no less than four others, is by far the most sensible approach.
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