What would really make Android better is not locking the devices down. No locked bootloaders, no denying users root, no forcing users to keep apps they don't want. At worst, Android should lock the phones/tablets as a security measure, while making it not-too-hard for users to unlock them. If youses want to install a non-default Android distribution, they should be allowed to do so.
Remember the 2000's when people used to brag about how small their phones were? Those were the days.