Now that iPhone 6S, iPad Air 2 and iPad Pro support dual ac streams with maximum bandwidth of 866 Mbps, does USB 2 which has a max bandwidth of 480 Mbps still sync apps and songs faster than Wifi? I am asking this because I have Air 2 and 6S in house and both support 866 Mbps wireless ac speeds. Apple is being adamant to NOT support USB 3 speeds over lightning port and even those lightning cables are pathetic USB 2 which are ultimately overpriced. I know that there are wifi overheads and all other things but has Wifi sync overtaken USB 2 as a reliable and faster method to sync our data? It took me 1 hr to sync all my songs via that USB cable. I'm t's 2016 FFS. If the benefits are tangible, I will upgrade my old router to ac router. Can anyone shed light on this?