For my game work I absolutely became dependent on the batch export using naming conventions. And using markers and names for multi-file export. This is the most single useful feature in Nuendo I haven’t seen anywhere else.
I love the “Info Line” with the numerical possibilities and the MediaBay for quick access to my sound library and its ability to read BWAV metadata. It saves me lots of time opening an external program to look for sounds.
Search functionality for plugins.
Control Room.
Also interesting would be, what are the 3 most hated things in Nuendo 