Yellowhammer, I don't have any experience with 22 ARC.
I have 12.5", 16", and 20" 6.5 Grendel ARs, which is the parent case for 22 ARC. I'm only getting 2,720 FPS with 90 grain Speer TNT handloads in the 20" 6.5 Grendel. It works great but I prefer more speed for predators. I've been using the ELD-VT 62 grain bullets in my 22 Creedmoor and they perform. Combining the 6.5 Grendel case, necked down, and the ELD-VT 62 grain bullets sounds like a great combination with advertised velocity around 3,300 FPS. If I had to choose today between 22 Nosler based on my experience and 22 ARC in an AR, I'd probably go for 22 ARC.