Sup slutz,
I have recently started a part time teaching position at a media collage here in Norway teaching "Sound and Music Production (first year)". The featured software for this coarse is Cubase however, as a teacher, I get a master license that opens all Steinbergs software

. After realizing this I promptly got my hands on Nuendo 5.5 to give it a spin in a post mixing situation and I have say, I quite like it! Don´t get me wrong, I like it but I haven´t gone deep enough too be comfortable in a large mixing situation but there are just a few features that I feel are really handy for post (or music for that mater).
Folder Tracks:
Firstly, these are great! I found it really handy too have the ability to fold all your FX/BGs/DIAL or whatever tracks at the click of a button. This could be really useful when editing busy sessions IMO. Also, you can have folders within folders for all the food groups and even for your sends which is pretty cool and keeps things simple and easy to find.
Automation Logs:
I liked this... allot. You can even name your logs! Elegant. Also they had an automation mode that allows you to glide into the next set of settings... Its probably adjustable but in certain situations, this might be exactly what you need for a smoother transition with no fuss.
Offline Processing Recall:
Its in the name. You can process you audio offline with any plugins you have and then recall, tweak or bypass it later. I can think of a few ways to take advantage of this and it saves some processing power in the bargain
64 bit...
Direct routing:
A nice little panel can be brought up in the mixer window that allows you to simply click on where you want your audio to be routed too. Whenever you make a new stem (they call them group tracks) it appears on this window and can be routed accordingly with a click. This can also be automated. Fast and easy.
Cycle Markers:
Like normal makers, just that these identify the start and the end of a selection... a double click selects the area and is now ready to be looped and automated. Also sub markers (normal ones) can be added for other important info.
Offline Batch Export:
I think its pretty convenient to be able to batch process all your stems (and/or individual tracks) in your whole mix offline. Why not?
I run Pt HD10 and love it for mixing and editing... But I think some of the features listed above would be nice to have! If similar features exist in pt then please enlighten me.