✔Canon EOS 70D + Canon EF-S 18-55mm f/3.5-5.6 IS STM
✔Nikon D7100 + 18-105mm f/3.5-5.6G ED VR DX
A phase-detection autofocus system is faster than a contrast detection autofocus system. Even when recording scenes with a lot of fast movements, the videos are sharp and clear.
Has phase-detection autofocus for videos: is this important to you?