The Canon 7D Mark II is an excellent camera that has stood the test of time very well, and its image quality is a near match to that of the Nikon D500. However, the D500 benefits from a little finessing that has been brought about by recent developments. The autofocusing system is absolutely superb, and the whole camera just seems a little more responsive than its Canon counterpart. The new SnapBridge technology is a boon to anyone who likes to share images on a frequent basis, because it saves you from having to remake the connection with your phone.
It's a shame that Nikon hasn't put some effort into improving the Live View and Video autofocus system for the D500, because the tilting touch-sensitive screen are a great partnership for the 4K video recording capability.