So it seems like these would be good things to look for:

MultEQ XT32 (or maybe without the 32, 32 seems to make it $$$)
DSX
Cinema Sensation
Dynamic volume
dynamic eq
bass XT

Upconverting to 4k can't hurt for when I get a new TV someday.
Streaming things like Pandora or airplay would be nice for when I do want music. Maybe I'd have it on more with these features, but definitely nice to have, not have to.

I like the sound of DSX, mostly because ever since I moved into my current house ~6 years ago the surround sound isn't as good, since the rear/side speakers had to go a little in front of the listening position on the sides the way the room is setup. I can tell a big difference from when they were on the sides but behind where I sat in the old house. If there is a receiver technology that can help with this, I'm all for it.