Edge used to be unique,but then they just copied chromium.... It had much smaller scrolling which was great on touch screens. Now I have no reason to use it.
Let's be clear: it's a very good browser, very HTML5 compliant, and perhaps one of the best browsers...
...Assuming you don't care about insane amounts of spyware - AND not having a lot of really cool browser add-ons (those having spyware and memory leaks is a separate topic, but I want to acknowledge these problems).
Edge makes more calls home per second than any other piece of software on my computer. I looked at my live log and it was a literal stream. Nearly every single action you do is tracked and sent.... (waves hands confusingly up in the air in circles) ...somewhere. Likely Microsoft, but I really don't know.
Almost all of Windows is like this too. I hate it so much. There's just no great way to have nice things right now.