At this early stage of the 2019-20 NHL season, it's all about the defensemen when it comes to the quality of rookie performance.
Avalanche phenom Cale Makar has garnered the lion's share of the attention, which he deserves as the rookie scoring leader (third overall among all defensemen in the league). You'll occasionally hear about Quinn Hughes of the Canucks as well. He has gone about his business a little more under-the-radar, putting up numbers that we'd all be going wild over if not for the aforementioned Makar.
The fact of the matter is that both Makar and Hughes are putting together starts that we haven't seen by rookie defensemen in decades.