USB C is better in every way: charging, data rate, formats (USB 3.1, Thunderbolt 3, Display port, some at the same time), reversable. Its only disadvantage is cost. The connector costs more, but so does the charging circuit. This is in part due to the extra protection against dodgy non-complient USB C cables that accidently trigger the high voltage chargers to output too high a voltage to the unit connected. Nasty if that gets in to the battery. Google did a study on their Chromebooks and things went bang before they improved the circuitry.
I have trouble finding a mini USB in my huge box of cables. I don't onow where they all went.
Oh yeah, no question -- USB-C is far better and more versatile, and that's why everything is moving to USB-C. I was just saying I liked mini-USB better than micro-USB, but USB-C is unquestionably superior for all the reasons you mentioned.
That's why Mobius and other new wireless/active headphones coming out now are moving away from microUSB to USB-C and why it's always notable when something has come out in the last year, as some have, still stuck with microUSB, but that's quickly changing. I know the Sony WH1000XM2 still has microUSB and that was noted in reviews, but Master & Dynamic's newest wireless cans have USB-C, the B&W PX has USB-C, etc.