Finally I figured it out!!!!.....I think....
After dabbling for over a decade with the Cube and PT I think I finally know a sufficient answer to this question. The answer is "neither and both". Bare with me...
If your looking for super fast editing, tracking, automation, pretty much anything in the workspace, cubase is dope for it. I can mix and cleanup a song in Cubase a hundred times faster than I can in PT. you should see the look on my clients faces when they see im using Cubase 6 (not pro tools) and im able to tightly mix their songs as they record them, effects and all. They are able to walk out my studio minutes after the last audio is captured with a near finalized mix of their material. Now I know my experience makes that possible but alot comes from steinberg focusing on making quality software thats very user friendly.
Now if you are looking for a program with a high resolution sound engine, pristine cpu power in your plugintry(yes i made that up), and mapping and bussing that will literally make you verbally abuse your setup repeatedly then PT is for you. Its a reason why its called PRO Tools and not Poor Tools. Its idealogy to be used with gear. If youve got an icon or SSL, hell even a AWS 94 or any analog board of comparison protools will seem easy because your board interfaces and whatever you touch corresponds. Not click bussing or drawing automation. You get all that special power at your finger tips. Evan my tascam integrates with PT very well and allows me more flexibility then using a mouse.
So in conclusion:
Cubase: fast editing, quicker routing, seems more plugin and midi friendly, and easy on the brain.
PT: Industry depth in sound, more power out of your plugins and mix, if you have the new 10 you can maximize headroom with the new 32bit engine. Greatly compatible with interface board.
But here is why I said "neither but both" .... Lets look at these two notable entities as Beyonce and Jay Z(I will let you pick which is which). Before they teamed up they were arguably the best in their genres(arguably meaning there were other singers and rappers mentionable) but it wasn't until they becamevunited when Beyonce became the queen of RnB and JayZ secured his legendary image as one of the greatest in hiphop. Now who can actually argue that B is better then J or vice versa? You cant because they're different in style and genre. But put them together and you get one hell of a combo! And that is why I say both...(best analogy I could think of sorry)
Since i purchased PT 10 when it released I noticed how much more power and detail avid put into the post production/recording features of PT... And then it hit me! Do my recording and editing in cubase using the seamless workspace features, but then mix and master the trax in PT(especially with that new 32bit engine which makes it nearly impossible to clip audio). The epiphany of using both for what they do best has been gold for me literally. Granted its a few more steps to take wether you .OMF out or mixdown to a 32bit stereo track, it gets the job done and ive had no complaints in the past year I have been using this combination... In fact Ive expanded on my business.
PT 10Hd, Cubase 6, Reason 5, Tascam DM 3200, AKG C414 XLS, AKG 214, Presonus Monitor station, M-Audio Bx8s and Bx5s, quad core, 8g RAM, 2Terabyte drives, and a redbull!