Anyone with a good explanation from the lore will be great
Gotrek. The lad survived an apocalypse.
I'd count Ungrim Ironfist too.
Considering his role during the Storm of Chaos and the End Times.
Thorgrim. Defeated Gorbad and is a boss
Astragoth ironhand. HAHA
Thorgrim because he kill Queek Headhunter and Belegar because He kill Skarsnik. And Snorri whitebeard because he is grombrinal and the son of grungni
What do you think?