None of these is what I want most
As a business user, in a fast-paced communications environment, the one feature I desperately miss is the ability to control the volume of the separate notifications. I get "paged" at night, but I don't want to hear every email come in, just in case I get a page. Even my Blackberry, from the better part of a decade ago, had this ability. There are apps that you can get that can allow this sort of thing, but I feel that it should be a basic part of the operating system. I would love to have the option of either using the default setting, or configuring a custom volume for each text and email account.