For me the idea of the channel EQ is a Tool, which is placed in every channel without using additional plugins in other positions in chain, and with a permanent visual feedback in Mixer and channel overview.
A combination of multiple plugins is not really an option for me (although I like postfilter for offline-processing), not knowing in which plugin I automated what. I want to filter in one single overview, otherwise I propably would get lost in a big project mixing.
And of course there are post-pro filters on the market, so no need to use multiple Nuendo-EQs.
I have to use a third party plugin, which offers me more bands (including cuts/shelves), like OxfordEQ or Fabfilter. And the Channel-EQ is still left out ever since I use Nuendo.