Some of my personal ones are:
Gabe Newell
The vinesauce crew (Vinny, Joel, Limes, Rev, etc)
Jerma
Jabroni Mike
Fredrick "fat nuts" Knudsen
WhiskeyDing0
Hideki Naganuma
King Gizzard
Peter Gabriel
Ross Scott (acursed farms)
John Carmack
John Romero
Might update this with more if I think of any.