easy one
I'll try not to sound like a sales weasel. All of PARIS's EQ's, Verb's, FX, etc. use the included EDS card. Not your host computer's CPU. This frees up your CPU to handle the recording process and track management. Most other DAW's use the CPU for all EQ's, Verb's, FX, etc. This limits the track count to the capabilities of your Computers CPU, uncool. I have personally done 48-track projects in PARIS. Some of my buddies have done more. I haven't tried a multiple EDS system yet, but I'm hoping to pick up another EDS and C16 this summer.
All this stuff is well and good but the most important thing to me is sound. I have heard/used most of the systems out there and PARIS just sounded the best to me, everything else is gravy. Simple as that.