I WOULD say the WHC MITB match was more unpredictable than the WWE MITB match but I guess that would be wrong considering who didn't win the latter lol.
I have to say the WWE one, just because there were more important players involved, and really, what did the WHC MITB offer that the WWE one didn't even in terms of memorable spots or moments? Heyman turning on Punk>Ambrose falling on a bunch of people.
I think Sandow winning did please me more than Orton, especially since it means a talent I like (both in-ring and character wise) is getting a push and so is Cody Rhodes it seems, but overall, I was still more emotionally involved in the WWE one. It just felt overall more important, being an All-Stars match and the final match of the card and for a shot at the WWE Title, a belt more prestigious than the WHC.